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Merge tag 'for-3.8-rc1' of git://gitorious.org/linux-pwm/linux-pwm

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Pull pwm changes from Thierry Reding:
 "A new driver has been added for the SPEAr platform and the
  TWL4030/6030 driver has been replaced by two drivers that control the
  regular PWMs and the PWM driven LEDs provided by the chips.

  The vt8500, tiecap, tiehrpwm, i.MX, LPC32xx and Samsung drivers have
  all been improved and the device tree bindings now support the PWM
  signal polarity."

Fix up trivial conflicts due to __devinit/exit removal.

* tag 'for-3.8-rc1' of git://gitorious.org/linux-pwm/linux-pwm: (21 commits)
  pwm: samsung: add missing s3c->pwm_id assignment
  pwm: lpc32xx: Set the chip base for dynamic allocation
  pwm: lpc32xx: Properly disable the clock on device removal
  pwm: lpc32xx: Fix the PWM polarity
  pwm: i.MX: eliminate build warning
  pwm: Export of_pwm_xlate_with_flags()
  pwm: Remove pwm-twl6030 driver
  pwm: New driver to support PWM driven LEDs on TWL4030/6030 series of PMICs
  pwm: New driver to support PWMs on TWL4030/6030 series of PMICs
  pwm: pwm-tiehrpwm: pinctrl support
  pwm: tiehrpwm: Add device-tree binding
  pwm: pwm-tiehrpwm: Adding TBCLK gating support.
  pwm: pwm-tiecap: pinctrl support
  pwm: tiecap: Add device-tree binding
  pwm: Add TI PWM subsystem driver
  pwm: Device tree support for PWM polarity
  pwm: vt8500: Ensure PWM clock is enabled during pwm_config
  pwm: vt8500: Fix build error
  pwm: spear: Staticize spear_pwm_config()
  pwm: Add SPEAr PWM chip driver support
  ...
This commit is contained in:
Linus Torvalds
2012-12-19 08:19:07 -08:00
parent 5031a2a7c1 20e8ac3eea
commit 74779e2226
24 changed files with 1594 additions and 222 deletions
Download Patch File Download Diff File Expand all files Collapse all files

48
drivers/pwm/pwm-tiecap.c
View File

@@ -25,6 +25,10 @@
#include <linux/clk.h>
#include <linux/pm_runtime.h>
#include <linux/pwm.h>
#include <linux/of_device.h>
#include <linux/pinctrl/consumer.h>
#include "pwm-tipwmss.h"
/* ECAP registers and bits definitions */
#define CAP1 0x08
@@ -184,12 +188,24 @@ static const struct pwm_ops ecap_pwm_ops = {
.owner = THIS_MODULE,
};
static const struct of_device_id ecap_of_match[] = {
{ .compatible = "ti,am33xx-ecap" },
{},
};
MODULE_DEVICE_TABLE(of, ecap_of_match);
static int ecap_pwm_probe(struct platform_device *pdev)
{
int ret;
struct resource *r;
struct clk *clk;
struct ecap_pwm_chip *pc;
u16 status;
struct pinctrl *pinctrl;
pinctrl = devm_pinctrl_get_select_default(&pdev->dev);
if (IS_ERR(pinctrl))
dev_warn(&pdev->dev, "unable to select pin group\n");
pc = devm_kzalloc(&pdev->dev, sizeof(*pc), GFP_KERNEL);
if (!pc) {
@@ -211,6 +227,8 @@ static int ecap_pwm_probe(struct platform_device *pdev)
pc->chip.dev = &pdev->dev;
pc->chip.ops = &ecap_pwm_ops;
pc->chip.of_xlate = of_pwm_xlate_with_flags;
pc->chip.of_pwm_n_cells = 3;
pc->chip.base = -1;
pc->chip.npwm = 1;
@@ -231,14 +249,40 @@ static int ecap_pwm_probe(struct platform_device *pdev)
}
pm_runtime_enable(&pdev->dev);
pm_runtime_get_sync(&pdev->dev);
status = pwmss_submodule_state_change(pdev->dev.parent,
PWMSS_ECAPCLK_EN);
if (!(status & PWMSS_ECAPCLK_EN_ACK)) {
dev_err(&pdev->dev, "PWMSS config space clock enable failed\n");
ret = -EINVAL;
goto pwmss_clk_failure;
}
pm_runtime_put_sync(&pdev->dev);
platform_set_drvdata(pdev, pc);
return 0;
pwmss_clk_failure:
pm_runtime_put_sync(&pdev->dev);
pm_runtime_disable(&pdev->dev);
pwmchip_remove(&pc->chip);
return ret;
}
static int ecap_pwm_remove(struct platform_device *pdev)
{
struct ecap_pwm_chip *pc = platform_get_drvdata(pdev);
pm_runtime_get_sync(&pdev->dev);
/*
* Due to hardware misbehaviour, acknowledge of the stop_req
* is missing. Hence checking of the status bit skipped.
*/
pwmss_submodule_state_change(pdev->dev.parent, PWMSS_ECAPCLK_STOP_REQ);
pm_runtime_put_sync(&pdev->dev);
pm_runtime_put_sync(&pdev->dev);
pm_runtime_disable(&pdev->dev);
return pwmchip_remove(&pc->chip);
@@ -246,7 +290,9 @@ static int ecap_pwm_remove(struct platform_device *pdev)
static struct platform_driver ecap_pwm_driver = {
.driver = {
.name = "ecap",
.name = "ecap",
.owner = THIS_MODULE,
.of_match_table = ecap_of_match,
},
.probe = ecap_pwm_probe,
.remove = ecap_pwm_remove,