diff options
Diffstat (limited to 'drivers/pwm')
| -rw-r--r-- | drivers/pwm/Kconfig | 2 | ||||
| -rw-r--r-- | drivers/pwm/pwm-mediatek.c | 19 |
2 files changed, 19 insertions, 2 deletions
diff --git a/drivers/pwm/Kconfig b/drivers/pwm/Kconfig index a4d262db9945..504d252716f2 100644 --- a/drivers/pwm/Kconfig +++ b/drivers/pwm/Kconfig @@ -286,7 +286,7 @@ config PWM_MTK_DISP config PWM_MEDIATEK tristate "MediaTek PWM support" - depends on ARCH_MEDIATEK || COMPILE_TEST + depends on ARCH_MEDIATEK || RALINK || COMPILE_TEST help Generic PWM framework driver for Mediatek ARM SoC. diff --git a/drivers/pwm/pwm-mediatek.c b/drivers/pwm/pwm-mediatek.c index 328c124773b2..eb6674ce995f 100644 --- a/drivers/pwm/pwm-mediatek.c +++ b/drivers/pwm/pwm-mediatek.c @@ -57,6 +57,7 @@ static const char * const mtk_pwm_clk_name[MTK_CLK_MAX] = { struct mtk_pwm_platform_data { unsigned int num_pwms; bool pwm45_fixup; + bool has_clks; }; /** @@ -86,6 +87,9 @@ static int mtk_pwm_clk_enable(struct pwm_chip *chip, struct pwm_device *pwm) struct mtk_pwm_chip *pc = to_mtk_pwm_chip(chip); int ret; + if (!pc->soc->has_clks) + return 0; + ret = clk_prepare_enable(pc->clks[MTK_CLK_TOP]); if (ret < 0) return ret; @@ -112,6 +116,9 @@ static void mtk_pwm_clk_disable(struct pwm_chip *chip, struct pwm_device *pwm) { struct mtk_pwm_chip *pc = to_mtk_pwm_chip(chip); + if (!pc->soc->has_clks) + return; + clk_disable_unprepare(pc->clks[MTK_CLK_PWM1 + pwm->hwpwm]); clk_disable_unprepare(pc->clks[MTK_CLK_MAIN]); clk_disable_unprepare(pc->clks[MTK_CLK_TOP]); @@ -239,7 +246,7 @@ static int mtk_pwm_probe(struct platform_device *pdev) if (IS_ERR(pc->regs)) return PTR_ERR(pc->regs); - for (i = 0; i < data->num_pwms + 2; i++) { + for (i = 0; i < data->num_pwms + 2 && pc->soc->has_clks; i++) { pc->clks[i] = devm_clk_get(&pdev->dev, mtk_pwm_clk_name[i]); if (IS_ERR(pc->clks[i])) { dev_err(&pdev->dev, "clock: %s fail: %ld\n", @@ -274,22 +281,32 @@ static int mtk_pwm_remove(struct platform_device *pdev) static const struct mtk_pwm_platform_data mt2712_pwm_data = { .num_pwms = 8, .pwm45_fixup = false, + .has_clks = true, }; static const struct mtk_pwm_platform_data mt7622_pwm_data = { .num_pwms = 6, .pwm45_fixup = false, + .has_clks = true, }; static const struct mtk_pwm_platform_data mt7623_pwm_data = { .num_pwms = 5, .pwm45_fixup = true, + .has_clks = true, +}; + +static const struct mtk_pwm_platform_data mt7628_pwm_data = { + .num_pwms = 4, + .pwm45_fixup = true, + .has_clks = false, }; static const struct of_device_id mtk_pwm_of_match[] = { { .compatible = "mediatek,mt2712-pwm", .data = &mt2712_pwm_data }, { .compatible = "mediatek,mt7622-pwm", .data = &mt7622_pwm_data }, { .compatible = "mediatek,mt7623-pwm", .data = &mt7623_pwm_data }, + { .compatible = "mediatek,mt7628-pwm", .data = &mt7628_pwm_data }, { }, }; MODULE_DEVICE_TABLE(of, mtk_pwm_of_match); |