linux-kernel - [PATCH] clk: imx: imx6sx: remove the SET_RATE

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Date:   Wed, 14 Sep 2022 15:10:49 -0500
From:   Han Xu <han.xu@....com>
To:     Abel Vesa <abelvesa@...nel.org>,
        Michael Turquette <mturquette@...libre.com>,
        Stephen Boyd <sboyd@...nel.org>,
        Shawn Guo <shawnguo@...nel.org>,
        Sascha Hauer <s.hauer@...gutronix.de>,
        Pengutronix Kernel Team <kernel@...gutronix.de>,
        Fabio Estevam <festevam@...il.com>,
        NXP Linux Team <linux-imx@....com>,
        linux-clk@...r.kernel.org (open list:NXP i.MX CLOCK DRIVERS),
        linux-arm-kernel@...ts.infradead.org (moderated list:ARM/FREESCALE IMX
        / MXC ARM ARCHITECTURE), linux-kernel@...r.kernel.org (open list)
Cc:     miquel.raynal@...tlin.com, linux-mtd@...ts.infradead.org,
        han.xu@....com
Subject: [PATCH] clk: imx: imx6sx: remove the SET_RATE_PARENT flag for QSPI clocks

There is no dedicate parent clock for QSPI so SET_RATE_PARENT flag
should not be used. For instance, the default parent clock for QSPI is
pll2_bus, which is also the parent clock for quite a few modules, such
as MMDC, once GPMI NAND set clock rate for EDO5 mode can cause system
hang due to pll2_bus rate changed.

Fixes: f1541e15e38e ("clk: imx6sx: Switch to clk_hw based API")
Signed-off-by: Han Xu <han.xu@....com>
---
 drivers/clk/imx/clk-imx6sx.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/clk/imx/clk-imx6sx.c b/drivers/clk/imx/clk-imx6sx.c
index 2301d8fb8c76..1e53e366cde7 100644
--- a/drivers/clk/imx/clk-imx6sx.c
+++ b/drivers/clk/imx/clk-imx6sx.c
@@ -324,13 +324,13 @@ static void __init imx6sx_clocks_init(struct device_node *ccm_node)
 	hws[IMX6SX_CLK_SSI3_SEL]           = imx_clk_hw_mux("ssi3_sel",         base + 0x1c,  14,     2,      ssi_sels,          ARRAY_SIZE(ssi_sels));
 	hws[IMX6SX_CLK_SSI2_SEL]           = imx_clk_hw_mux("ssi2_sel",         base + 0x1c,  12,     2,      ssi_sels,          ARRAY_SIZE(ssi_sels));
 	hws[IMX6SX_CLK_SSI1_SEL]           = imx_clk_hw_mux("ssi1_sel",         base + 0x1c,  10,     2,      ssi_sels,          ARRAY_SIZE(ssi_sels));
-	hws[IMX6SX_CLK_QSPI1_SEL]          = imx_clk_hw_mux_flags("qspi1_sel", base + 0x1c,  7, 3, qspi1_sels, ARRAY_SIZE(qspi1_sels), CLK_SET_RATE_PARENT);
+	hws[IMX6SX_CLK_QSPI1_SEL]          = imx_clk_hw_mux("qspi1_sel",        base + 0x1c,  7,      3,      qspi1_sels,        ARRAY_SIZE(qspi1_sels);
 	hws[IMX6SX_CLK_PERCLK_SEL]         = imx_clk_hw_mux("perclk_sel",       base + 0x1c,  6,      1,      perclk_sels,       ARRAY_SIZE(perclk_sels));
 	hws[IMX6SX_CLK_VID_SEL]            = imx_clk_hw_mux("vid_sel",          base + 0x20,  21,     3,      vid_sels,          ARRAY_SIZE(vid_sels));
 	hws[IMX6SX_CLK_ESAI_SEL]           = imx_clk_hw_mux("esai_sel",         base + 0x20,  19,     2,      audio_sels,        ARRAY_SIZE(audio_sels));
 	hws[IMX6SX_CLK_CAN_SEL]            = imx_clk_hw_mux("can_sel",          base + 0x20,  8,      2,      can_sels,          ARRAY_SIZE(can_sels));
 	hws[IMX6SX_CLK_UART_SEL]           = imx_clk_hw_mux("uart_sel",         base + 0x24,  6,      1,      uart_sels,         ARRAY_SIZE(uart_sels));
-	hws[IMX6SX_CLK_QSPI2_SEL]          = imx_clk_hw_mux_flags("qspi2_sel", base + 0x2c, 15, 3, qspi2_sels, ARRAY_SIZE(qspi2_sels), CLK_SET_RATE_PARENT);
+	hws[IMX6SX_CLK_QSPI2_SEL]          = imx_clk_hw_mux("qspi2_sel",        base + 0x2c,  15,     3,      qspi2_sels,        ARRAY_SIZE(qspi2_sels);
 	hws[IMX6SX_CLK_SPDIF_SEL]          = imx_clk_hw_mux("spdif_sel",        base + 0x30,  20,     2,      audio_sels,        ARRAY_SIZE(audio_sels));
 	hws[IMX6SX_CLK_AUDIO_SEL]          = imx_clk_hw_mux("audio_sel",        base + 0x30,  7,      2,      audio_sels,        ARRAY_SIZE(audio_sels));
 	hws[IMX6SX_CLK_ENET_PRE_SEL]       = imx_clk_hw_mux("enet_pre_sel",     base + 0x34,  15,     3,      enet_pre_sels,     ARRAY_SIZE(enet_pre_sels));
-- 
2.25.1