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| author | Thierry Reding <thierry.reding@gmail.com> | 2016-07-25 16:23:39 +0200 |
|---|---|---|
| committer | Thierry Reding <thierry.reding@gmail.com> | 2016-07-25 16:23:39 +0200 |
| commit | 070d9a930620399a83127be6e7c6d2c2cc84a553 (patch) | |
| tree | 0be3bf65cd14597828857d72f40d5552b7de591c /drivers/pwm/pwm-tiecap.c | |
| parent | bd2686122d3b45db1398776921bd47fedfd6d6a5 (diff) | |
| parent | 1f0d3bb02785f698dc273b9006a473194c32f874 (diff) | |
| download | linux-070d9a930620399a83127be6e7c6d2c2cc84a553.tar.gz linux-070d9a930620399a83127be6e7c6d2c2cc84a553.tar.xz | |
Merge branch 'for-4.8/drivers' into for-next
Diffstat (limited to 'drivers/pwm/pwm-tiecap.c')
| -rw-r--r-- | drivers/pwm/pwm-tiecap.c | 37 |
1 files changed, 9 insertions, 28 deletions
diff --git a/drivers/pwm/pwm-tiecap.c b/drivers/pwm/pwm-tiecap.c index 616af764a276..6ec342dd3eea 100644 --- a/drivers/pwm/pwm-tiecap.c +++ b/drivers/pwm/pwm-tiecap.c @@ -27,8 +27,6 @@ #include <linux/pwm.h> #include <linux/of_device.h> -#include "pwm-tipwmss.h" - /* ECAP registers and bits definitions */ #define CAP1 0x08 #define CAP2 0x0C @@ -195,6 +193,7 @@ static const struct pwm_ops ecap_pwm_ops = { }; static const struct of_device_id ecap_of_match[] = { + { .compatible = "ti,am3352-ecap" }, { .compatible = "ti,am33xx-ecap" }, {}, }; @@ -202,11 +201,11 @@ MODULE_DEVICE_TABLE(of, ecap_of_match); static int ecap_pwm_probe(struct platform_device *pdev) { + struct device_node *np = pdev->dev.of_node; int ret; struct resource *r; struct clk *clk; struct ecap_pwm_chip *pc; - u16 status; pc = devm_kzalloc(&pdev->dev, sizeof(*pc), GFP_KERNEL); if (!pc) @@ -214,6 +213,13 @@ static int ecap_pwm_probe(struct platform_device *pdev) clk = devm_clk_get(&pdev->dev, "fck"); if (IS_ERR(clk)) { + if (of_device_is_compatible(np, "ti,am33xx-ecap")) { + dev_warn(&pdev->dev, "Binding is obsolete.\n"); + clk = devm_clk_get(pdev->dev.parent, "fck"); + } + } + + if (IS_ERR(clk)) { dev_err(&pdev->dev, "failed to get clock\n"); return PTR_ERR(clk); } @@ -243,40 +249,15 @@ 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_disable(&pdev->dev); return pwmchip_remove(&pc->chip); } |