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path: root/drivers/pwm/pwm-mediatek.c
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Diffstat (limited to 'drivers/pwm/pwm-mediatek.c')
-rw-r--r--drivers/pwm/pwm-mediatek.c19
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);