linux-kernel - [PATCH 6.0 484/862] clk: qcom: gcc-sdm660: Use floor ops for SDCC1 clock

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Date:   Wed, 19 Oct 2022 10:29:31 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org,
        Marijn Suijten <marijn.suijten@...ainline.org>,
        Alexey Minnekhanov <alexeymin@...tmarketos.org>,
        Stephen Boyd <sboyd@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 6.0 484/862] clk: qcom: gcc-sdm660: Use floor ops for SDCC1 clock

From: Marijn Suijten <marijn.suijten@...ainline.org>

[ Upstream commit 6956c18f4ad9200aa945f7ea37d65a05afc49d51 ]

In commit 3f905469c8ce ("clk: qcom: gcc: Use floor ops for SDCC clocks")
floor ops were applied to SDCC2 only, but flooring is also required on
the SDCC1 apps clock which is used by the eMMC card on Sony's Nile
platform, and otherwise result in the typicial "Card appears
overclocked" warnings observed on many other platforms before:

    mmc0: Card appears overclocked; req 52000000 Hz, actual 100000000 Hz
    mmc0: Card appears overclocked; req 52000000 Hz, actual 100000000 Hz
    mmc0: Card appears overclocked; req 104000000 Hz, actual 192000000 Hz

Fixes: f2a76a2955c0 ("clk: qcom: Add Global Clock controller (GCC) driver for SDM660")
Signed-off-by: Marijn Suijten <marijn.suijten@...ainline.org>
Tested-by: Alexey Minnekhanov <alexeymin@...tmarketos.org>
Reviewed-by: Stephen Boyd <sboyd@...nel.org>
Signed-off-by: Bjorn Andersson <andersson@...nel.org>
Link: https://lore.kernel.org/r/20220714203822.186448-1-marijn.suijten@somainline.org
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/clk/qcom/gcc-sdm660.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/clk/qcom/gcc-sdm660.c b/drivers/clk/qcom/gcc-sdm660.c
index 9b97425008ce..db918c92a522 100644
--- a/drivers/clk/qcom/gcc-sdm660.c
+++ b/drivers/clk/qcom/gcc-sdm660.c
@@ -757,7 +757,7 @@ static struct clk_rcg2 sdcc1_apps_clk_src = {
 		.name = "sdcc1_apps_clk_src",
 		.parent_data = gcc_parent_data_xo_gpll0_gpll4_gpll0_early_div,
 		.num_parents = ARRAY_SIZE(gcc_parent_data_xo_gpll0_gpll4_gpll0_early_div),
-		.ops = &clk_rcg2_ops,
+		.ops = &clk_rcg2_floor_ops,
 	},
 };
 
-- 
2.35.1