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authorLinus Torvalds <torvalds@linux-foundation.org>2015-09-04 20:22:09 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2015-09-04 20:22:09 +0300
commit88a99886c26fec8bf662e7b6bc080431a8660326 (patch)
tree615b9a9a959ab093f6d8d0dd94d3bbc5299fc4c6 /drivers/pinctrl/pinctrl-lpc18xx.c
parent8d2faea672606827c2018143ec7d88c760f2d6de (diff)
parent1ab36387ea4face01aac3560b396b1e2ce07c4ff (diff)
downloadlinux-88a99886c26fec8bf662e7b6bc080431a8660326.tar.xz
Merge tag 'pinctrl-v4.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl
Pull pin control updates from Linus Walleij: "This is the bulk of pin control changes for the v4.3 development cycle. Like with GPIO it's a lot of stuff. If my subsystems are any sign of the overall tempo of the kernel v4.3 will be a gigantic diff. [ It looks like 4.3 is calmer than 4.2 in most other subsystems, but we'll see - Linus ] Core changes: - It is possible configure groups in debugfs. - Consolidation of chained IRQ handler install/remove replacing all call sites where irq_set_handler_data() and irq_set_chained_handler() were done in succession with a combined call to irq_set_chained_handler_and_data(). This series was created by Thomas Gleixner after the problem was observed by Russell King. - Tglx also made another series of patches switching __irq_set_handler_locked() for irq_set_handler_locked() which is way cleaner. - Tglx also wrote a good bunch of patches to make use of irq_desc_get_xxx() accessors and avoid looking up irq_descs from IRQ numbers. The goal is to get rid of the irq number from the handlers in the IRQ flow which is nice. Driver feature enhancements: - Power management support for the SiRF SoC Atlas 7. - Power down support for the Qualcomm driver. - Intel Cherryview and Baytrail: switch drivers to use raw spinlocks in IRQ handlers to play nice with the realtime patch set. - Rework and new modes handling for Qualcomm SPMI-MPP. - Pinconf power source config for SH PFC. New drivers and subdrivers: - A new driver for Conexant Digicolor CX92755. - A new driver for UniPhier PH1-LD4, PH1-Pro4, PH1-sLD8, PH1-Pro5, ProXtream2 and PH1-LD6b SoC pin control support. - Reverse-egineered the S/PDIF settings for the Allwinner sun4i driver. - Support for Qualcomm Technologies QDF2xxx ARM64 SoCs - A new Freescale i.mx6ul subdriver. Cleanup: - Remove platform data support in a number of SH PFC subdrivers" * tag 'pinctrl-v4.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: (95 commits) pinctrl: at91: fix null pointer dereference pinctrl: mediatek: Implement wake handler and suspend resume pinctrl: mediatek: Fix multiple registration issue. pinctrl: sh-pfc: r8a7794: add USB pin groups pinctrl: at91: Use generic irq_{request,release}_resources() pinctrl: cherryview: Use raw_spinlock for locking pinctrl: baytrail: Use raw_spinlock for locking pinctrl: imx6ul: Remove .owner field pinctrl: zynq: Fix typos in smc0_nand_grp and smc0_nor_grp pinctrl: sh-pfc: Implement pinconf power-source param for voltage switching clk: rockchip: add pclk_pd_pmu to the list of rk3288 critical clocks pinctrl: sun4i: add spdif to pin description. pinctrl: atlas7: clear ugly branch statements for pull and drivestrength pinctrl: baytrail: Serialize all register access pinctrl: baytrail: Drop FSF mailing address pinctrl: rockchip: only enable gpio clock when it setting pinctrl/mediatek: fix spelling mistake in dev_err error message pinctrl: cherryview: Serialize all register access pinctrl: UniPhier: PH1-Pro5: add I2C ch6 pin-mux setting pinctrl: nomadik: reflect current input value ...
Diffstat (limited to 'drivers/pinctrl/pinctrl-lpc18xx.c')
-rw-r--r--drivers/pinctrl/pinctrl-lpc18xx.c54
1 files changed, 50 insertions, 4 deletions
diff --git a/drivers/pinctrl/pinctrl-lpc18xx.c b/drivers/pinctrl/pinctrl-lpc18xx.c
index 347c763a6a78..f0bebbe0682b 100644
--- a/drivers/pinctrl/pinctrl-lpc18xx.c
+++ b/drivers/pinctrl/pinctrl-lpc18xx.c
@@ -37,6 +37,9 @@
#define LPC18XX_SCU_PIN_EHD_MASK 0x300
#define LPC18XX_SCU_PIN_EHD_POS 8
+#define LPC18XX_SCU_USB1_EPD BIT(2)
+#define LPC18XX_SCU_USB1_EPWR BIT(4)
+
#define LPC18XX_SCU_I2C0_EFP BIT(0)
#define LPC18XX_SCU_I2C0_EHD BIT(2)
#define LPC18XX_SCU_I2C0_EZI BIT(3)
@@ -617,8 +620,31 @@ static const struct pinctrl_pin_desc lpc18xx_pins[] = {
static int lpc18xx_pconf_get_usb1(enum pin_config_param param, int *arg, u32 reg)
{
- /* TODO */
- return -ENOTSUPP;
+ switch (param) {
+ case PIN_CONFIG_LOW_POWER_MODE:
+ if (reg & LPC18XX_SCU_USB1_EPWR)
+ *arg = 0;
+ else
+ *arg = 1;
+ break;
+
+ case PIN_CONFIG_BIAS_DISABLE:
+ if (reg & LPC18XX_SCU_USB1_EPD)
+ return -EINVAL;
+ break;
+
+ case PIN_CONFIG_BIAS_PULL_DOWN:
+ if (reg & LPC18XX_SCU_USB1_EPD)
+ *arg = 1;
+ else
+ return -EINVAL;
+ break;
+
+ default:
+ return -ENOTSUPP;
+ }
+
+ return 0;
}
static int lpc18xx_pconf_get_i2c0(enum pin_config_param param, int *arg, u32 reg,
@@ -782,8 +808,28 @@ static int lpc18xx_pconf_set_usb1(struct pinctrl_dev *pctldev,
enum pin_config_param param,
u16 param_val, u32 *reg)
{
- /* TODO */
- return -ENOTSUPP;
+ switch (param) {
+ case PIN_CONFIG_LOW_POWER_MODE:
+ if (param_val)
+ *reg &= ~LPC18XX_SCU_USB1_EPWR;
+ else
+ *reg |= LPC18XX_SCU_USB1_EPWR;
+ break;
+
+ case PIN_CONFIG_BIAS_DISABLE:
+ *reg &= ~LPC18XX_SCU_USB1_EPD;
+ break;
+
+ case PIN_CONFIG_BIAS_PULL_DOWN:
+ *reg |= LPC18XX_SCU_USB1_EPD;
+ break;
+
+ default:
+ dev_err(pctldev->dev, "Property not supported\n");
+ return -ENOTSUPP;
+ }
+
+ return 0;
}
static int lpc18xx_pconf_set_i2c0(struct pinctrl_dev *pctldev,