From: Zhihui Chen Date: Fri, 20 Dec 2019 02:31:12 +0000 (+0800) Subject: drm/hisilicon/hibmc: add DPMS on/off function X-Git-Url: http://git.osdn.net/view?a=commitdiff_plain;h=5970af8b58aaa082c87042893fa644229d7aa332;p=uclinux-h8%2Flinux.git drm/hisilicon/hibmc: add DPMS on/off function add DPMS function to turn on/off signal of monitor Signed-off-by: Zhihui Chen Signed-off-by: Xinliang Liu Acked-by: Xinliang Liu Link: https://patchwork.freedesktop.org/patch/msgid/20191220023112.2728-1-chenzhihui4@huawei.com --- 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