linux-kernel - [PATCH v2 1/2] clk: mediatek: clk-mt8195-vdo0: Set rate on vdo0_dp_intf0_dp

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Message-Id: <20220617093424.75589-2-angelogioacchino.delregno@collabora.com>
Date:   Fri, 17 Jun 2022 11:34:23 +0200
From:   AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>
To:     mturquette@...libre.com
Cc:     sboyd@...nel.org, matthias.bgg@...il.com, wenst@...omium.org,
        angelogioacchino.delregno@...labora.com, miles.chen@...iatek.com,
        chun-jie.chen@...iatek.com, rex-bc.chen@...iatek.com,
        linux-clk@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-mediatek@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: [PATCH v2 1/2] clk: mediatek: clk-mt8195-vdo0: Set rate on vdo0_dp_intf0_dp_intf's parent

Add the CLK_SET_RATE_PARENT flag to the CLK_VDO0_DP_INTF0_DP_INTF
clock: this is required to trigger clock source selection on
CLK_TOP_EDP, while avoiding to manage the enablement of the former
separately from the latter in the displayport driver.

Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
Fixes: 70282c90d4a2 ("clk: mediatek: Add MT8195 vdosys0 clock support")
---
 drivers/clk/mediatek/clk-mt8195-vdo0.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/drivers/clk/mediatek/clk-mt8195-vdo0.c b/drivers/clk/mediatek/clk-mt8195-vdo0.c
index 261a7f76dd3c..07b46bfd5040 100644
--- a/drivers/clk/mediatek/clk-mt8195-vdo0.c
+++ b/drivers/clk/mediatek/clk-mt8195-vdo0.c
@@ -37,6 +37,10 @@ static const struct mtk_gate_regs vdo0_2_cg_regs = {
 #define GATE_VDO0_2(_id, _name, _parent, _shift)			\
 	GATE_MTK(_id, _name, _parent, &vdo0_2_cg_regs, _shift, &mtk_clk_gate_ops_setclr)
 
+#define GATE_VDO0_2_FLAGS(_id, _name, _parent, _shift, _flags)		\
+	GATE_MTK_FLAGS(_id, _name, _parent, &vdo0_2_cg_regs, _shift,	\
+		       &mtk_clk_gate_ops_setclr, _flags)
+
 static const struct mtk_gate vdo0_clks[] = {
 	/* VDO0_0 */
 	GATE_VDO0_0(CLK_VDO0_DISP_OVL0, "vdo0_disp_ovl0", "top_vpp", 0),
@@ -85,7 +89,8 @@ static const struct mtk_gate vdo0_clks[] = {
 	/* VDO0_2 */
 	GATE_VDO0_2(CLK_VDO0_DSI0_DSI, "vdo0_dsi0_dsi", "top_dsi_occ", 0),
 	GATE_VDO0_2(CLK_VDO0_DSI1_DSI, "vdo0_dsi1_dsi", "top_dsi_occ", 8),
-	GATE_VDO0_2(CLK_VDO0_DP_INTF0_DP_INTF, "vdo0_dp_intf0_dp_intf", "top_edp", 16),
+	GATE_VDO0_2_FLAGS(CLK_VDO0_DP_INTF0_DP_INTF, "vdo0_dp_intf0_dp_intf",
+			  "top_edp", 16, CLK_SET_RATE_PARENT),
 };
 
 static int clk_mt8195_vdo0_probe(struct platform_device *pdev)
-- 
2.35.1