linux-kernel - [PATCH 8/9] drm: meson: add macro used to enable HDMI PLL

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Message-ID: <86o92n82e1.fsf@baylibre.com>
Date:   Mon, 24 Jun 2019 16:49:04 +0200
From:   Julien Masson <jmasson@...libre.com>
To:     Neil Armstrong <narmstrong@...libre.com>
Cc:     linux-arm-kernel@...ts.infradead.org,
        linux-amlogic@...ts.infradead.org, dri-devel@...ts.freedesktop.org,
        linux-kernel@...r.kernel.org, Julien Masson <jmasson@...libre.com>
Subject: [PATCH 8/9] drm: meson: add macro used to enable HDMI PLL

This patch add new macro HHI_HDMI_PLL_CNTL_EN which is used to enable
HDMI PLL.

Signed-off-by: Julien Masson <jmasson@...libre.com>
---
 drivers/gpu/drm/meson/meson_vclk.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/meson/meson_vclk.c b/drivers/gpu/drm/meson/meson_vclk.c
index e7c2b439d0f7..be6e152fc75a 100644
--- a/drivers/gpu/drm/meson/meson_vclk.c
+++ b/drivers/gpu/drm/meson/meson_vclk.c
@@ -96,6 +96,7 @@
 #define HHI_VDAC_CNTL1		0x2F8 /* 0xbe offset in data sheet */
 
 #define HHI_HDMI_PLL_CNTL	0x320 /* 0xc8 offset in data sheet */
+#define HHI_HDMI_PLL_CNTL_EN	BIT(30)
 #define HHI_HDMI_PLL_CNTL2	0x324 /* 0xc9 offset in data sheet */
 #define HHI_HDMI_PLL_CNTL3	0x328 /* 0xca offset in data sheet */
 #define HHI_HDMI_PLL_CNTL4	0x32C /* 0xcb offset in data sheet */
@@ -468,7 +469,7 @@ void meson_hdmi_pll_set_params(struct meson_drm *priv, unsigned int m,
 
 		/* Enable and unreset */
 		regmap_update_bits(priv->hhi, HHI_HDMI_PLL_CNTL,
-				   0x7 << 28, 0x4 << 28);
+				   0x7 << 28, HHI_HDMI_PLL_CNTL_EN);
 
 		/* Poll for lock bit */
 		regmap_read_poll_timeout(priv->hhi, HHI_HDMI_PLL_CNTL,
-- 
2.17.1