openwrt/target/linux/bcm27xx/patches-5.4/950-0519-clk-bcm-rpi-Add-clock-id-to-data.patch

From 98d529ffea66937e8a9ba8b69172bb9c599cfa39 Mon Sep 17 00:00:00 2001
From: Maxime Ripard <maxime@cerno.tech>
Date: Fri, 7 Feb 2020 16:04:16 +0100
Subject: [PATCH] clk: bcm: rpi: Add clock id to data

The driver has really only supported one clock so far and has hardcoded the
ID used in communications with the firmware in all the functions
implementing the clock framework hooks. Let's store that in the clock data
structure so that we can support more clocks later on.

Cc: Michael Turquette <mturquette@baylibre.com>
Cc: linux-clk@vger.kernel.org
Acked-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
Reviewed-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
---
 drivers/clk/bcm/clk-raspberrypi.c | 16 +++++++---------
 1 file changed, 7 insertions(+), 9 deletions(-)

--- a/drivers/clk/bcm/clk-raspberrypi.c
+++ b/drivers/clk/bcm/clk-raspberrypi.c
@@ -39,6 +39,7 @@ struct raspberrypi_clk {
 
 struct raspberrypi_clk_data {
 	struct clk_hw hw;
+	unsigned id;
 
 	unsigned long min_rate;
 	unsigned long max_rate;
@@ -95,7 +96,7 @@ static int raspberrypi_fw_pll_is_on(stru
 
 	ret = raspberrypi_clock_property(rpi->firmware,
 					 RPI_FIRMWARE_GET_CLOCK_STATE,
-					 RPI_FIRMWARE_ARM_CLK_ID, &val);
+					 data->id, &val);
 	if (ret)
 		return 0;
 
@@ -114,8 +115,7 @@ static unsigned long raspberrypi_fw_pll_
 
 	ret = raspberrypi_clock_property(rpi->firmware,
 					 RPI_FIRMWARE_GET_CLOCK_RATE,
-					 RPI_FIRMWARE_ARM_CLK_ID,
-					 &val);
+					 data->id, &val);
 	if (ret)
 		return ret;
 
@@ -133,8 +133,7 @@ static int raspberrypi_fw_pll_set_rate(s
 
 	ret = raspberrypi_clock_property(rpi->firmware,
 					 RPI_FIRMWARE_SET_CLOCK_RATE,
-					 RPI_FIRMWARE_ARM_CLK_ID,
-					 &new_rate);
+					 data->id, &new_rate);
 	if (ret)
 		dev_err_ratelimited(rpi->dev, "Failed to change %s frequency: %d",
 				    clk_hw_get_name(hw), ret);
@@ -189,6 +188,7 @@ static int raspberrypi_register_pllb(str
 	if (!data)
 		return -ENOMEM;
 	data->rpi = rpi;
+	data->id = RPI_FIRMWARE_ARM_CLK_ID;
 
 	/* All of the PLLs derive from the external oscillator. */
 	init.parent_names = (const char *[]){ "osc" };
@@ -200,8 +200,7 @@ static int raspberrypi_register_pllb(str
 	/* Get min & max rates set by the firmware */
 	ret = raspberrypi_clock_property(rpi->firmware,
 					 RPI_FIRMWARE_GET_MIN_CLOCK_RATE,
-					 RPI_FIRMWARE_ARM_CLK_ID,
-					 &min_rate);
+					 data->id, &min_rate);
 	if (ret) {
 		dev_err(rpi->dev, "Failed to get %s min freq: %d\n",
 			init.name, ret);
@@ -210,8 +209,7 @@ static int raspberrypi_register_pllb(str
 
 	ret = raspberrypi_clock_property(rpi->firmware,
 					 RPI_FIRMWARE_GET_MAX_CLOCK_RATE,
-					 RPI_FIRMWARE_ARM_CLK_ID,
-					 &max_rate);
+					 data->id, &max_rate);
 	if (ret) {
 		dev_err(rpi->dev, "Failed to get %s max freq: %d\n",
 			init.name, ret);