openwrt/target/linux/brcm2708/patches-4.14/950-0014-spi-bcm2835-Remove-unused-code.patch
Stijn Tintel f5919b65d4 brcm2708: add kernel 4.14 support
Patch generation process:
- rebase rpi/rpi-4.14.y on v4.14.89 from linux-stable
- git format-patch v4.14.89

Patches skipped during rebase:
- lan78xx: Read MAC address from DT if present
- lan78xx: Enable LEDs and auto-negotiation
- Revert "softirq: Let ksoftirqd do its job"
- sc16is7xx: Fix for multi-channel stall
- lan78xx: Ignore DT MAC address if already valid
- lan78xx: Simple patch to prevent some crashes
- tcp_write_queue_purge clears all the SKBs in the write queue
- Revert "lan78xx: Simple patch to prevent some crashes"
- lan78xx: Connect phy early
- Arm: mm: ftrace: Only set text back to ro after kernel has been marked ro
- Revert "Revert "softirq: Let ksoftirqd do its job""
- ASoC: cs4265: SOC_SINGLE register value error fix
- Revert "ASoC: cs4265: SOC_SINGLE register value error fix"
- Revert "net: pskb_trim_rcsum() and CHECKSUM_COMPLETE are friends"
- Revert "Revert "net: pskb_trim_rcsum() and CHECKSUM_COMPLETE are friends""

Patches dropped after rebase:
- net: Add non-mainline source for rtl8192cu wlan
- net: Fix rtl8192cu build errors on other platforms
- brcm: adds support for BCM43341 wifi
- brcmfmac: Mute expected startup 'errors'
- ARM64: Fix build break for RTL8187/RTL8192CU wifi
- ARM64: Enable RTL8187/RTL8192CU wifi in build config
- This is the driver for Sony CXD2880 DVB-T2/T tuner + demodulator
- brcmfmac: add CLM download support
- brcmfmac: request_firmware_direct is quieter
- Sets the BCDC priority to constant 0
- brcmfmac: Disable ARP offloading when promiscuous
- brcmfmac: Avoid possible out-of-bounds read
- brcmfmac: Delete redundant length check
- net: rtl8192cu: Normalize indentation
- net: rtl8192cu: Fix implicit fallthrough warnings
- Revert "Sets the BCDC priority to constant 0"
- media: cxd2880: Bump to match 4.18.y version
- media: cxd2880-spi: Bump to match 4.18.y version
- Revert "mm: alloc_contig: re-allow CMA to compact FS pages"
- Revert "Revert "mm: alloc_contig: re-allow CMA to compact FS pages""
- cxd2880: CXD2880_SPI_DRV should select DVB_CXD2880 with
  MEDIA_SUBDRV_AUTOSELECT
- 950-0421-HID-hid-bigbenff-driver-for-BigBen-Interactive-PS3OF.patch
- 950-0453-Add-hid-bigbenff-to-list-of-have_special_driver-for-.patch

Make I2C built-in instead of modular as in upstream defconfig; also the
easiest way to get MFD_ARIZONA enabled, which is required by
kmod-sound-soc-rpi-cirrus.
Add missing compatible strings from
4.9/960-add-rasbperrypi-compatible.patch, using upstream names for
compute modules.
Add extra patch to enable the LEDs on lan78xx.

Compile-tested: bcm2708, bcm2709, bcm2710 (with CONFIG_ALL_KMODS=y)
Runtime-tested: bcm2708, bcm2710

Signed-off-by: Stijn Tintel <stijn@linux-ipv6.be>
2018-12-18 23:19:21 +02:00

89 lines
2.3 KiB
Diff

From 538bc2e4d22633d87f2e4689edfd1f313baf61ab Mon Sep 17 00:00:00 2001
From: Phil Elwell <phil@raspberrypi.org>
Date: Tue, 8 Nov 2016 21:35:38 +0000
Subject: [PATCH 014/454] spi-bcm2835: Remove unused code
---
drivers/spi/spi-bcm2835.c | 61 ---------------------------------------
1 file changed, 61 deletions(-)
--- a/drivers/spi/spi-bcm2835.c
+++ b/drivers/spi/spi-bcm2835.c
@@ -679,17 +679,8 @@ static void bcm2835_spi_set_cs(struct sp
bcm2835_wr(bs, BCM2835_SPI_CS, cs);
}
-static int chip_match_name(struct gpio_chip *chip, void *data)
-{
- return !strcmp(chip->label, data);
-}
-
static int bcm2835_spi_setup(struct spi_device *spi)
{
- int err;
- struct gpio_chip *chip;
- struct device_node *pins;
- u32 pingroup_index;
/*
* sanity checking the native-chipselects
*/
@@ -707,58 +698,6 @@ static int bcm2835_spi_setup(struct spi_
return -EINVAL;
}
-#if 0
- /* now translate native cs to GPIO */
- /* first look for chip select pins in the devices pin groups */
- for (pingroup_index = 0;
- (pins = of_parse_phandle(spi->master->dev.of_node,
- "pinctrl-0",
- pingroup_index)) != 0;
- pingroup_index++) {
- u32 pin;
- u32 pin_index;
- for (pin_index = 0;
- of_property_read_u32_index(pins,
- "brcm,pins",
- pin_index,
- &pin) == 0;
- pin_index++) {
- if (((spi->chip_select == 0) &&
- ((pin == 8) || (pin == 36) || (pin == 46))) ||
- ((spi->chip_select == 1) &&
- ((pin == 7) || (pin == 35)))) {
- spi->cs_gpio = pin;
- break;
- }
- }
- of_node_put(pins);
- }
- /* if that fails, assume GPIOs 7-11 are used */
- if (!gpio_is_valid(spi->cs_gpio) ) {
- /* get the gpio chip for the base */
- chip = gpiochip_find("pinctrl-bcm2835", chip_match_name);
- if (!chip)
- return 0;
-
- /* and calculate the real CS */
- spi->cs_gpio = chip->base + 8 - spi->chip_select;
- }
-
- /* and set up the "mode" and level */
- dev_info(&spi->dev, "setting up native-CS%i as GPIO %i\n",
- spi->chip_select, spi->cs_gpio);
-
- /* set up GPIO as output and pull to the correct level */
- err = gpio_direction_output(spi->cs_gpio,
- (spi->mode & SPI_CS_HIGH) ? 0 : 1);
- if (err) {
- dev_err(&spi->dev,
- "could not set CS%i gpio %i as output: %i",
- spi->chip_select, spi->cs_gpio, err);
- return err;
- }
-#endif
-
return 0;
}