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538a1d740c
The patches were generated from the RPi repo with the following command: git format-patch v6.6.58..rpi-6.6.y Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
609 lines
17 KiB
Diff
609 lines
17 KiB
Diff
From 9fb57f6b8920a8aceb74ceb3e171a7e5769205a5 Mon Sep 17 00:00:00 2001
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From: Dom Cobley <popcornmix@gmail.com>
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Date: Thu, 10 Oct 2024 17:18:39 +0100
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Subject: [PATCH 1313/1350] Reapply "drivers: Remove downstream SenseHAT core
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and joystick drivers"
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This reverts commit e6493e2d6a1f572fbb4a1d724e54715cb748b424.
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---
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drivers/input/joystick/Kconfig | 8 --
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drivers/input/joystick/Makefile | 1 -
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drivers/input/joystick/rpisense-js.c | 153 ---------------------
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drivers/mfd/Kconfig | 8 --
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drivers/mfd/Makefile | 1 -
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drivers/mfd/rpisense-core.c | 163 -----------------------
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drivers/video/fbdev/Kconfig | 4 +-
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drivers/video/fbdev/rpisense-fb.c | 53 ++++----
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include/linux/mfd/rpisense/core.h | 47 -------
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include/linux/mfd/rpisense/framebuffer.h | 5 +-
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10 files changed, 32 insertions(+), 411 deletions(-)
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delete mode 100644 drivers/input/joystick/rpisense-js.c
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delete mode 100644 drivers/mfd/rpisense-core.c
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delete mode 100644 include/linux/mfd/rpisense/core.h
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--- a/drivers/input/joystick/Kconfig
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+++ b/drivers/input/joystick/Kconfig
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@@ -412,12 +412,4 @@ config JOYSTICK_SENSEHAT
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To compile this driver as a module, choose M here: the
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module will be called sensehat_joystick.
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-config JOYSTICK_RPISENSE
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- tristate "Raspberry Pi Sense HAT joystick"
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- depends on GPIOLIB && INPUT
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- select MFD_RPISENSE_CORE
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-
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- help
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- This is the joystick driver for the Raspberry Pi Sense HAT
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-
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endif
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--- a/drivers/input/joystick/Makefile
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+++ b/drivers/input/joystick/Makefile
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@@ -40,4 +40,3 @@ obj-$(CONFIG_JOYSTICK_WARRIOR) += warri
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obj-$(CONFIG_JOYSTICK_WALKERA0701) += walkera0701.o
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obj-$(CONFIG_JOYSTICK_XPAD) += xpad.o
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obj-$(CONFIG_JOYSTICK_ZHENHUA) += zhenhua.o
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-obj-$(CONFIG_JOYSTICK_RPISENSE) += rpisense-js.o
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--- a/drivers/input/joystick/rpisense-js.c
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+++ /dev/null
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@@ -1,153 +0,0 @@
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-/*
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- * Raspberry Pi Sense HAT joystick driver
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- * http://raspberrypi.org
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- *
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- * Copyright (C) 2015 Raspberry Pi
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- *
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- * Author: Serge Schneider
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- *
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- * This program is free software; you can redistribute it and/or modify it
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- * under the terms of the GNU General Public License as published by the
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- * Free Software Foundation; either version 2 of the License, or (at your
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- * option) any later version.
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- *
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- */
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-
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-#include <linux/module.h>
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-
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-#include <linux/mfd/rpisense/joystick.h>
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-#include <linux/mfd/rpisense/core.h>
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-
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-static struct rpisense *rpisense;
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-static unsigned char keymap[5] = {KEY_DOWN, KEY_RIGHT, KEY_UP, KEY_ENTER, KEY_LEFT,};
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-
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-static void keys_work_fn(struct work_struct *work)
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-{
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- int i;
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- static s32 prev_keys;
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- struct rpisense_js *rpisense_js = &rpisense->joystick;
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- s32 keys = rpisense_reg_read(rpisense, RPISENSE_KEYS);
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- s32 changes = keys ^ prev_keys;
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-
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- prev_keys = keys;
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- for (i = 0; i < 5; i++) {
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- if (changes & 1) {
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- input_report_key(rpisense_js->keys_dev,
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- keymap[i], keys & 1);
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- }
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- changes >>= 1;
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- keys >>= 1;
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- }
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- input_sync(rpisense_js->keys_dev);
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-}
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-
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-static irqreturn_t keys_irq_handler(int irq, void *pdev)
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-{
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- struct rpisense_js *rpisense_js = &rpisense->joystick;
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-
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- schedule_work(&rpisense_js->keys_work_s);
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- return IRQ_HANDLED;
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-}
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-
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-static int rpisense_js_probe(struct platform_device *pdev)
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-{
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- int ret;
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- int i;
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- struct rpisense_js *rpisense_js;
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-
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- rpisense = rpisense_get_dev();
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- rpisense_js = &rpisense->joystick;
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-
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- INIT_WORK(&rpisense_js->keys_work_s, keys_work_fn);
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-
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- rpisense_js->keys_dev = input_allocate_device();
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- if (!rpisense_js->keys_dev) {
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- dev_err(&pdev->dev, "Could not allocate input device.\n");
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- return -ENOMEM;
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- }
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-
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- rpisense_js->keys_dev->evbit[0] = BIT_MASK(EV_KEY);
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- for (i = 0; i < ARRAY_SIZE(keymap); i++) {
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- set_bit(keymap[i],
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- rpisense_js->keys_dev->keybit);
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- }
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-
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- rpisense_js->keys_dev->name = "Raspberry Pi Sense HAT Joystick";
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- rpisense_js->keys_dev->phys = "rpi-sense-joy/input0";
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- rpisense_js->keys_dev->id.bustype = BUS_I2C;
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- rpisense_js->keys_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REP);
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- rpisense_js->keys_dev->keycode = keymap;
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- rpisense_js->keys_dev->keycodesize = sizeof(unsigned char);
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- rpisense_js->keys_dev->keycodemax = ARRAY_SIZE(keymap);
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-
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- ret = input_register_device(rpisense_js->keys_dev);
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- if (ret) {
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- dev_err(&pdev->dev, "Could not register input device.\n");
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- goto err_keys_alloc;
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- }
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-
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- ret = gpiod_direction_input(rpisense_js->keys_desc);
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- if (ret) {
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- dev_err(&pdev->dev, "Could not set keys-int direction.\n");
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- goto err_keys_reg;
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- }
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-
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- rpisense_js->keys_irq = gpiod_to_irq(rpisense_js->keys_desc);
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- if (rpisense_js->keys_irq < 0) {
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- dev_err(&pdev->dev, "Could not determine keys-int IRQ.\n");
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- ret = rpisense_js->keys_irq;
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- goto err_keys_reg;
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- }
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-
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- ret = devm_request_irq(&pdev->dev, rpisense_js->keys_irq,
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- keys_irq_handler, IRQF_TRIGGER_RISING,
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- "keys", &pdev->dev);
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- if (ret) {
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- dev_err(&pdev->dev, "IRQ request failed.\n");
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- goto err_keys_reg;
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- }
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- return 0;
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-err_keys_reg:
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- input_unregister_device(rpisense_js->keys_dev);
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-err_keys_alloc:
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- input_free_device(rpisense_js->keys_dev);
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- return ret;
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-}
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-
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-static int rpisense_js_remove(struct platform_device *pdev)
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-{
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- struct rpisense_js *rpisense_js = &rpisense->joystick;
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-
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- input_unregister_device(rpisense_js->keys_dev);
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- input_free_device(rpisense_js->keys_dev);
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- return 0;
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-}
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-
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-#ifdef CONFIG_OF
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-static const struct of_device_id rpisense_js_id[] = {
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- { .compatible = "rpi,rpi-sense-js" },
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- { },
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-};
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-MODULE_DEVICE_TABLE(of, rpisense_js_id);
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-#endif
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-
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-static struct platform_device_id rpisense_js_device_id[] = {
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- { .name = "rpi-sense-js" },
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- { },
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-};
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-MODULE_DEVICE_TABLE(platform, rpisense_js_device_id);
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-
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-static struct platform_driver rpisense_js_driver = {
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- .probe = rpisense_js_probe,
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- .remove = rpisense_js_remove,
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- .driver = {
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- .name = "rpi-sense-js",
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- .owner = THIS_MODULE,
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- },
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-};
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-
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-module_platform_driver(rpisense_js_driver);
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-
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-MODULE_DESCRIPTION("Raspberry Pi Sense HAT joystick driver");
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-MODULE_AUTHOR("Serge Schneider <serge@raspberrypi.org>");
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-MODULE_LICENSE("GPL");
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--- a/drivers/mfd/Kconfig
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+++ b/drivers/mfd/Kconfig
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@@ -11,14 +11,6 @@ config MFD_CORE
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select IRQ_DOMAIN
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default n
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-config MFD_RPISENSE_CORE
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- tristate "Raspberry Pi Sense HAT core functions"
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- depends on I2C
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- select MFD_CORE
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- help
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- This is the core driver for the Raspberry Pi Sense HAT. This provides
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- the necessary functions to communicate with the hardware.
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-
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config MFD_CS5535
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tristate "AMD CS5535 and CS5536 southbridge core functions"
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select MFD_CORE
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--- a/drivers/mfd/Makefile
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+++ b/drivers/mfd/Makefile
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@@ -268,7 +268,6 @@ obj-$(CONFIG_MFD_STMFX) += stmfx.o
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obj-$(CONFIG_MFD_KHADAS_MCU) += khadas-mcu.o
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obj-$(CONFIG_MFD_ACER_A500_EC) += acer-ec-a500.o
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obj-$(CONFIG_MFD_QCOM_PM8008) += qcom-pm8008.o
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-obj-$(CONFIG_MFD_RPISENSE_CORE) += rpisense-core.o
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obj-$(CONFIG_SGI_MFD_IOC3) += ioc3.o
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obj-$(CONFIG_MFD_SIMPLE_MFD_I2C) += simple-mfd-i2c.o
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--- a/drivers/mfd/rpisense-core.c
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+++ /dev/null
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@@ -1,163 +0,0 @@
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-/*
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- * Raspberry Pi Sense HAT core driver
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- * http://raspberrypi.org
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- *
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- * Copyright (C) 2015 Raspberry Pi
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- *
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- * Author: Serge Schneider
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- *
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- * This program is free software; you can redistribute it and/or modify it
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- * under the terms of the GNU General Public License as published by the
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- * Free Software Foundation; either version 2 of the License, or (at your
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- * option) any later version.
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- *
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- * This driver is based on wm8350 implementation.
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- */
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-
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-#include <linux/module.h>
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-#include <linux/moduleparam.h>
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-#include <linux/err.h>
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-#include <linux/init.h>
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-#include <linux/i2c.h>
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-#include <linux/platform_device.h>
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-#include <linux/mfd/rpisense/core.h>
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-#include <linux/slab.h>
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-
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-static struct rpisense *rpisense;
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-
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-static void rpisense_client_dev_register(struct rpisense *rpisense,
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- const char *name,
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- struct platform_device **pdev)
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-{
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- int ret;
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-
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- *pdev = platform_device_alloc(name, -1);
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- if (*pdev == NULL) {
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- dev_err(rpisense->dev, "Failed to allocate %s\n", name);
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- return;
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- }
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-
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- (*pdev)->dev.parent = rpisense->dev;
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- platform_set_drvdata(*pdev, rpisense);
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- ret = platform_device_add(*pdev);
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- if (ret != 0) {
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- dev_err(rpisense->dev, "Failed to register %s: %d\n",
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- name, ret);
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- platform_device_put(*pdev);
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- *pdev = NULL;
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- }
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-}
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-
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-static int rpisense_probe(struct i2c_client *i2c)
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-{
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- int ret;
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- struct rpisense_js *rpisense_js;
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-
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- rpisense = devm_kzalloc(&i2c->dev, sizeof(struct rpisense), GFP_KERNEL);
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- if (rpisense == NULL)
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- return -ENOMEM;
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-
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- i2c_set_clientdata(i2c, rpisense);
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- rpisense->dev = &i2c->dev;
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- rpisense->i2c_client = i2c;
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-
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- ret = rpisense_reg_read(rpisense, RPISENSE_WAI);
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- if (ret > 0) {
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- if (ret != 's')
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- return -EINVAL;
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- } else {
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- return ret;
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- }
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- ret = rpisense_reg_read(rpisense, RPISENSE_VER);
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- if (ret < 0)
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- return ret;
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-
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- dev_info(rpisense->dev,
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- "Raspberry Pi Sense HAT firmware version %i\n", ret);
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-
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- rpisense_js = &rpisense->joystick;
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- rpisense_js->keys_desc = devm_gpiod_get(&i2c->dev,
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- "keys-int", GPIOD_IN);
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- if (IS_ERR(rpisense_js->keys_desc)) {
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- dev_warn(&i2c->dev, "Failed to get keys-int descriptor.\n");
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- rpisense_js->keys_desc = gpio_to_desc(23);
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- if (rpisense_js->keys_desc == NULL) {
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- dev_err(&i2c->dev, "GPIO23 fallback failed.\n");
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- return PTR_ERR(rpisense_js->keys_desc);
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- }
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- }
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- rpisense_client_dev_register(rpisense, "rpi-sense-js",
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- &(rpisense->joystick.pdev));
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- rpisense_client_dev_register(rpisense, "rpi-sense-fb",
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- &(rpisense->framebuffer.pdev));
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-
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- return 0;
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-}
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-
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-static void rpisense_remove(struct i2c_client *i2c)
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-{
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- struct rpisense *rpisense = i2c_get_clientdata(i2c);
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-
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- platform_device_unregister(rpisense->joystick.pdev);
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-}
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-
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-struct rpisense *rpisense_get_dev(void)
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-{
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- return rpisense;
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-}
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-EXPORT_SYMBOL_GPL(rpisense_get_dev);
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-
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-s32 rpisense_reg_read(struct rpisense *rpisense, int reg)
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-{
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- int ret = i2c_smbus_read_byte_data(rpisense->i2c_client, reg);
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-
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- if (ret < 0)
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- dev_err(rpisense->dev, "Read from reg %d failed\n", reg);
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- /* Due to the BCM270x I2C clock stretching bug, some values
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- * may have MSB set. Clear it to avoid incorrect values.
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- * */
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- return ret & 0x7F;
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-}
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-EXPORT_SYMBOL_GPL(rpisense_reg_read);
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-
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-int rpisense_block_write(struct rpisense *rpisense, const char *buf, int count)
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-{
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- int ret = i2c_master_send(rpisense->i2c_client, buf, count);
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-
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- if (ret < 0)
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- dev_err(rpisense->dev, "Block write failed\n");
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- return ret;
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-}
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-EXPORT_SYMBOL_GPL(rpisense_block_write);
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-
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-static const struct i2c_device_id rpisense_i2c_id[] = {
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- { "rpi-sense", 0 },
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- { }
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-};
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-MODULE_DEVICE_TABLE(i2c, rpisense_i2c_id);
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-
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-#ifdef CONFIG_OF
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-static const struct of_device_id rpisense_core_id[] = {
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- { .compatible = "rpi,rpi-sense" },
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- { },
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-};
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-MODULE_DEVICE_TABLE(of, rpisense_core_id);
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-#endif
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-
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-
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-static struct i2c_driver rpisense_driver = {
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- .driver = {
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- .name = "rpi-sense",
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- .owner = THIS_MODULE,
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- },
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- .probe = rpisense_probe,
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- .remove = rpisense_remove,
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- .id_table = rpisense_i2c_id,
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-};
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-
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-module_i2c_driver(rpisense_driver);
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-
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-MODULE_DESCRIPTION("Raspberry Pi Sense HAT core driver");
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-MODULE_AUTHOR("Serge Schneider <serge@raspberrypi.org>");
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-MODULE_LICENSE("GPL");
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-
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--- a/drivers/video/fbdev/Kconfig
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+++ b/drivers/video/fbdev/Kconfig
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@@ -1967,8 +1967,8 @@ config FB_SM712
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config FB_RPISENSE
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tristate "Raspberry Pi Sense HAT framebuffer"
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- depends on FB
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- select MFD_RPISENSE_CORE
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+ depends on FB && I2C
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+ select MFD_SIMPLE_MFD_I2C
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select FB_SYS_FOPS
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select FB_SYS_FILLRECT
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select FB_SYS_COPYAREA
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--- a/drivers/video/fbdev/rpisense-fb.c
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+++ b/drivers/video/fbdev/rpisense-fb.c
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@@ -23,16 +23,14 @@
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#include <linux/delay.h>
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#include <linux/fb.h>
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#include <linux/init.h>
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+#include <linux/platform_device.h>
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#include <linux/mfd/rpisense/framebuffer.h>
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-#include <linux/mfd/rpisense/core.h>
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static bool lowlight;
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module_param(lowlight, bool, 0);
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MODULE_PARM_DESC(lowlight, "Reduce LED matrix brightness to one third");
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-static struct rpisense *rpisense;
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-
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struct rpisense_fb_param {
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char __iomem *vmem;
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u8 *vmem_work;
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@@ -116,26 +114,26 @@ static void rpisense_fb_imageblit(struct
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}
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static void rpisense_fb_deferred_io(struct fb_info *info,
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- struct list_head *pagelist)
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+ struct list_head *pagelist)
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{
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int i;
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int j;
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u8 *vmem_work = rpisense_fb_param.vmem_work;
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u16 *mem = (u16 *)rpisense_fb_param.vmem;
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|
u8 *gamma = rpisense_fb_param.gamma;
|
|
+ struct rpisense_fb *rpisense_fb = info->par;
|
|
|
|
- vmem_work[0] = 0;
|
|
for (j = 0; j < 8; j++) {
|
|
for (i = 0; i < 8; i++) {
|
|
- vmem_work[(j * 24) + i + 1] =
|
|
+ vmem_work[(j * 24) + i] =
|
|
gamma[(mem[(j * 8) + i] >> 11) & 0x1F];
|
|
- vmem_work[(j * 24) + (i + 8) + 1] =
|
|
+ vmem_work[(j * 24) + (i + 8)] =
|
|
gamma[(mem[(j * 8) + i] >> 6) & 0x1F];
|
|
- vmem_work[(j * 24) + (i + 16) + 1] =
|
|
+ vmem_work[(j * 24) + (i + 16)] =
|
|
gamma[(mem[(j * 8) + i]) & 0x1F];
|
|
}
|
|
}
|
|
- rpisense_block_write(rpisense, vmem_work, 193);
|
|
+ regmap_bulk_write(rpisense_fb->regmap, 0, vmem_work, 192);
|
|
}
|
|
|
|
static struct fb_deferred_io rpisense_fb_defio = {
|
|
@@ -200,8 +198,22 @@ static int rpisense_fb_probe(struct plat
|
|
int ret = -ENOMEM;
|
|
struct rpisense_fb *rpisense_fb;
|
|
|
|
- rpisense = rpisense_get_dev();
|
|
- rpisense_fb = &rpisense->framebuffer;
|
|
+ info = framebuffer_alloc(sizeof(*rpisense_fb), &pdev->dev);
|
|
+ if (!info) {
|
|
+ dev_err(&pdev->dev, "Could not allocate framebuffer.\n");
|
|
+ goto err_malloc;
|
|
+ }
|
|
+
|
|
+ rpisense_fb = info->par;
|
|
+ platform_set_drvdata(pdev, rpisense_fb);
|
|
+
|
|
+ rpisense_fb->pdev = pdev;
|
|
+ rpisense_fb->regmap = dev_get_regmap(pdev->dev.parent, NULL);
|
|
+ if (!rpisense_fb->regmap) {
|
|
+ dev_err(&pdev->dev,
|
|
+ "unable to get sensehat regmap");
|
|
+ return -ENODEV;
|
|
+ }
|
|
|
|
rpisense_fb_param.vmem = vzalloc(rpisense_fb_param.vmemsize);
|
|
if (!rpisense_fb_param.vmem)
|
|
@@ -211,12 +223,6 @@ static int rpisense_fb_probe(struct plat
|
|
if (!rpisense_fb_param.vmem_work)
|
|
goto err_malloc;
|
|
|
|
- info = framebuffer_alloc(0, &pdev->dev);
|
|
- if (!info) {
|
|
- dev_err(&pdev->dev, "Could not allocate framebuffer.\n");
|
|
- goto err_malloc;
|
|
- }
|
|
- rpisense_fb->info = info;
|
|
|
|
rpisense_fb_fix.smem_start = (unsigned long)rpisense_fb_param.vmem;
|
|
rpisense_fb_fix.smem_len = rpisense_fb_param.vmemsize;
|
|
@@ -253,7 +259,7 @@ err_malloc:
|
|
|
|
static int rpisense_fb_remove(struct platform_device *pdev)
|
|
{
|
|
- struct rpisense_fb *rpisense_fb = &rpisense->framebuffer;
|
|
+ struct rpisense_fb *rpisense_fb = platform_get_drvdata(pdev);
|
|
struct fb_info *info = rpisense_fb->info;
|
|
|
|
if (info) {
|
|
@@ -266,19 +272,11 @@ static int rpisense_fb_remove(struct pla
|
|
return 0;
|
|
}
|
|
|
|
-#ifdef CONFIG_OF
|
|
static const struct of_device_id rpisense_fb_id[] = {
|
|
- { .compatible = "rpi,rpi-sense-fb" },
|
|
+ { .compatible = "raspberrypi,rpi-sense-fb" },
|
|
{ },
|
|
};
|
|
MODULE_DEVICE_TABLE(of, rpisense_fb_id);
|
|
-#endif
|
|
-
|
|
-static struct platform_device_id rpisense_fb_device_id[] = {
|
|
- { .name = "rpi-sense-fb" },
|
|
- { },
|
|
-};
|
|
-MODULE_DEVICE_TABLE(platform, rpisense_fb_device_id);
|
|
|
|
static struct platform_driver rpisense_fb_driver = {
|
|
.probe = rpisense_fb_probe,
|
|
@@ -286,6 +284,7 @@ static struct platform_driver rpisense_f
|
|
.driver = {
|
|
.name = "rpi-sense-fb",
|
|
.owner = THIS_MODULE,
|
|
+ .of_match_table = rpisense_fb_id,
|
|
},
|
|
};
|
|
|
|
--- a/include/linux/mfd/rpisense/core.h
|
|
+++ /dev/null
|
|
@@ -1,47 +0,0 @@
|
|
-/*
|
|
- * Raspberry Pi Sense HAT core driver
|
|
- * http://raspberrypi.org
|
|
- *
|
|
- * Copyright (C) 2015 Raspberry Pi
|
|
- *
|
|
- * Author: Serge Schneider
|
|
- *
|
|
- * This program is free software; you can redistribute it and/or modify it
|
|
- * under the terms of the GNU General Public License as published by the
|
|
- * Free Software Foundation; either version 2 of the License, or (at your
|
|
- * option) any later version.
|
|
- *
|
|
- */
|
|
-
|
|
-#ifndef __LINUX_MFD_RPISENSE_CORE_H_
|
|
-#define __LINUX_MFD_RPISENSE_CORE_H_
|
|
-
|
|
-#include <linux/mfd/rpisense/joystick.h>
|
|
-#include <linux/mfd/rpisense/framebuffer.h>
|
|
-
|
|
-/*
|
|
- * Register values.
|
|
- */
|
|
-#define RPISENSE_FB 0x00
|
|
-#define RPISENSE_WAI 0xF0
|
|
-#define RPISENSE_VER 0xF1
|
|
-#define RPISENSE_KEYS 0xF2
|
|
-#define RPISENSE_EE_WP 0xF3
|
|
-
|
|
-#define RPISENSE_ID 's'
|
|
-
|
|
-struct rpisense {
|
|
- struct device *dev;
|
|
- struct i2c_client *i2c_client;
|
|
-
|
|
- /* Client devices */
|
|
- struct rpisense_js joystick;
|
|
- struct rpisense_fb framebuffer;
|
|
-};
|
|
-
|
|
-struct rpisense *rpisense_get_dev(void);
|
|
-s32 rpisense_reg_read(struct rpisense *rpisense, int reg);
|
|
-int rpisense_reg_write(struct rpisense *rpisense, int reg, u16 val);
|
|
-int rpisense_block_write(struct rpisense *rpisense, const char *buf, int count);
|
|
-
|
|
-#endif
|
|
--- a/include/linux/mfd/rpisense/framebuffer.h
|
|
+++ b/include/linux/mfd/rpisense/framebuffer.h
|
|
@@ -16,6 +16,8 @@
|
|
#ifndef __LINUX_RPISENSE_FB_H_
|
|
#define __LINUX_RPISENSE_FB_H_
|
|
|
|
+#include <linux/regmap.h>
|
|
+
|
|
#define SENSEFB_FBIO_IOC_MAGIC 0xF1
|
|
|
|
#define SENSEFB_FBIOGET_GAMMA _IO(SENSEFB_FBIO_IOC_MAGIC, 0)
|
|
@@ -25,8 +27,9 @@
|
|
struct rpisense;
|
|
|
|
struct rpisense_fb {
|
|
- struct platform_device *pdev;
|
|
struct fb_info *info;
|
|
+ struct platform_device *pdev;
|
|
+ struct regmap *regmap;
|
|
};
|
|
|
|
#endif
|