diff options
| author | Zhihui Chen <chenzhihui4@huawei.com> | 2019-12-20 10:31:12 +0800 |
|---|---|---|
| committer | Xinliang Liu <xinliang.liu@linaro.org> | 2020-02-13 09:52:40 +0000 |
| commit | 5970af8b58aaa082c87042893fa644229d7aa332 (patch) | |
| tree | 513be545f9e03a14e5ae5f2daf85ff7ab0bace4f /drivers/gpu/drm/hisilicon/hibmc | |
| parent | f2f8653e0d7771c00a1b826cc53b6a48c5e33d18 (diff) | |
drm/hisilicon/hibmc: add DPMS on/off function
add DPMS function to turn on/off signal of monitor
Signed-off-by: Zhihui Chen <chenzhihui4@huawei.com>
Signed-off-by: Xinliang Liu <xinliang.liu@linaro.org>
Acked-by: Xinliang Liu <xinliang.liu@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20191220023112.2728-1-chenzhihui4@huawei.com
Diffstat (limited to 'drivers/gpu/drm/hisilicon/hibmc')
| -rw-r--r-- | drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_de.c | 16 | ||||
| -rw-r--r-- | drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_regs.h | 6 |
2 files changed, 22 insertions, 0 deletions
diff --git a/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_de.c b/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_de.c index 9baeabd136d2..c41d8f82e82a 100644 --- a/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_de.c +++ b/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_de.c @@ -187,6 +187,20 @@ static struct drm_plane *hibmc_plane_init(struct hibmc_drm_private *priv) return plane; } +static void hibmc_crtc_dpms(struct drm_crtc *crtc, int dpms) +{ + struct hibmc_drm_private *priv = crtc->dev->dev_private; + unsigned int reg; + + reg = readl(priv->mmio + HIBMC_CRT_DISP_CTL); + reg &= ~HIBMC_CRT_DISP_CTL_DPMS_MASK; + reg |= HIBMC_FIELD(HIBMC_CRT_DISP_CTL_DPMS, dpms); + reg &= ~HIBMC_CRT_DISP_CTL_TIMING_MASK; + if (dpms == HIBMC_CRT_DPMS_ON) + reg |= HIBMC_CRT_DISP_CTL_TIMING(1); + writel(reg, priv->mmio + HIBMC_CRT_DISP_CTL); +} + static void hibmc_crtc_atomic_enable(struct drm_crtc *crtc, struct drm_crtc_state *old_state) { @@ -203,6 +217,7 @@ static void hibmc_crtc_atomic_enable(struct drm_crtc *crtc, reg |= HIBMC_CURR_GATE_DISPLAY(1); hibmc_set_current_gate(priv, reg); drm_crtc_vblank_on(crtc); + hibmc_crtc_dpms(crtc, HIBMC_CRT_DPMS_ON); } static void hibmc_crtc_atomic_disable(struct drm_crtc *crtc, @@ -211,6 +226,7 @@ static void hibmc_crtc_atomic_disable(struct drm_crtc *crtc, unsigned int reg; struct hibmc_drm_private *priv = crtc->dev->dev_private; + hibmc_crtc_dpms(crtc, HIBMC_CRT_DPMS_OFF); drm_crtc_vblank_off(crtc); hibmc_set_power_mode(priv, HIBMC_PW_MODE_CTL_MODE_SLEEP); diff --git a/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_regs.h b/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_regs.h index b63a1ee15ceb..b9e20cfcfb5a 100644 --- a/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_regs.h +++ b/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_regs.h @@ -68,6 +68,12 @@ #define HIBMC_CRT_DISP_CTL 0x80200 +#define HIBMC_CRT_DISP_CTL_DPMS(x) ((x) << 30) +#define HIBMC_CRT_DISP_CTL_DPMS_MASK 0xc0000000 + +#define HIBMC_CRT_DPMS_ON 0 +#define HIBMC_CRT_DPMS_OFF 3 + #define HIBMC_CRT_DISP_CTL_CRTSELECT(x) ((x) << 25) #define HIBMC_CRT_DISP_CTL_CRTSELECT_MASK 0x2000000 |