1 files changed, 18 insertions, 1 deletions

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);