diff options
| author | Oleksandr Suvorov <oleksandr.suvorov@toradex.com> | 2019-07-12 14:47:04 +0300 |
|---|---|---|
| committer | Oleksandr Suvorov <oleksandr.suvorov@toradex.com> | 2019-07-12 16:07:42 +0300 |
| commit | 4cdfe80fd4cb96a927484fde12d43f4bc71ac26f (patch) | |
| tree | fbeee29eb09423df8c7f032ce4f9fd3a89dfc140 /drivers | |
| parent | b4dd90d27b774b9062d1dc3d85dc2a031cc72507 (diff) | |
drm/mxsfb: don't manipulate with clock inside ISR
iMX8 manages clocks with system controller (sc) using RPC.
Using RPC procedures from interrupt context leads kernel
crash.
Remove enabling/disabling clock in interrupt handler.
Signed-off-by: Oleksandr Suvorov <oleksandr.suvorov@toradex.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/gpu/drm/mxsfb/mxsfb_drv.c | 4 |
1 files changed, 0 insertions, 4 deletions
diff --git a/drivers/gpu/drm/mxsfb/mxsfb_drv.c b/drivers/gpu/drm/mxsfb/mxsfb_drv.c index 11d95d48d2ae..507e5516a918 100644 --- a/drivers/gpu/drm/mxsfb/mxsfb_drv.c +++ b/drivers/gpu/drm/mxsfb/mxsfb_drv.c @@ -645,8 +645,6 @@ static irqreturn_t mxsfb_irq_handler(int irq, void *data) struct mxsfb_drm_private *mxsfb = drm->dev_private; u32 reg; - clk_prepare_enable(mxsfb->clk_axi); - reg = readl(mxsfb->base + LCDC_CTRL1); if (reg & CTRL1_CUR_FRAME_DONE_IRQ) @@ -654,8 +652,6 @@ static irqreturn_t mxsfb_irq_handler(int irq, void *data) writel(CTRL1_CUR_FRAME_DONE_IRQ, mxsfb->base + LCDC_CTRL1 + REG_CLR); - clk_disable_unprepare(mxsfb->clk_axi); - return IRQ_HANDLED; } |