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Message-Id: <20230120092053.182923-10-angelogioacchino.delregno@collabora.com>
Date: Fri, 20 Jan 2023 10:20:39 +0100
From: AngeloGioacchino Del Regno
<angelogioacchino.delregno@...labora.com>
To: mturquette@...libre.com
Cc: sboyd@...nel.org, matthias.bgg@...il.com, robh+dt@...nel.org,
krzysztof.kozlowski+dt@...aro.org,
angelogioacchino.delregno@...labora.com, wenst@...omium.org,
johnson.wang@...iatek.com, miles.chen@...iatek.com,
fparent@...libre.com, chun-jie.chen@...iatek.com,
sam.shih@...iatek.com, y.oudjana@...tonmail.com,
nfraprado@...labora.com, rex-bc.chen@...iatek.com,
ryder.lee@...nel.org, daniel@...rotopia.org,
jose.exposito89@...il.com, yangyingliang@...wei.com,
pablo.sun@...iatek.com, msp@...libre.com, weiyi.lu@...iatek.com,
ikjn@...omium.org, linux-kernel@...r.kernel.org,
linux-clk@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
linux-mediatek@...ts.infradead.org, devicetree@...r.kernel.org,
kernel@...labora.com
Subject: [PATCH v4 09/23] clk: mediatek: mt8173: Remove mtk_clk_enable_critical()
The entire point of mtk_clk_enable_critical() is to raise the refcount
of some clocks so that they won't be turned off during runtime, but
this is the same as what the CLK_IS_CRITICAL flag does.
Set CLK_IS_CRITICAL on all of the critical clocks and remove the
aforementioned function as a cleanup.
No functional changes.
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
Reviewed-by: Chen-Yu Tsai <wenst@...omium.org>
---
drivers/clk/mediatek/clk-mt8173.c | 41 ++++++++++++-------------------
1 file changed, 16 insertions(+), 25 deletions(-)
diff --git a/drivers/clk/mediatek/clk-mt8173.c b/drivers/clk/mediatek/clk-mt8173.c
index 0163d27e8795..787ab87036a0 100644
--- a/drivers/clk/mediatek/clk-mt8173.c
+++ b/drivers/clk/mediatek/clk-mt8173.c
@@ -546,8 +546,11 @@ static const struct mtk_composite cpu_muxes[] = {
static const struct mtk_composite top_muxes[] = {
/* CLK_CFG_0 */
MUX(CLK_TOP_AXI_SEL, "axi_sel", axi_parents, 0x0040, 0, 3),
- MUX(CLK_TOP_MEM_SEL, "mem_sel", mem_parents, 0x0040, 8, 1),
- MUX_GATE(CLK_TOP_DDRPHYCFG_SEL, "ddrphycfg_sel", ddrphycfg_parents, 0x0040, 16, 1, 23),
+ MUX_FLAGS(CLK_TOP_MEM_SEL, "mem_sel", mem_parents, 0x0040, 8, 1,
+ CLK_IS_CRITICAL | CLK_SET_RATE_PARENT),
+ MUX_GATE_FLAGS(CLK_TOP_DDRPHYCFG_SEL, "ddrphycfg_sel",
+ ddrphycfg_parents, 0x0040, 16, 1, 23,
+ CLK_IS_CRITICAL | CLK_SET_RATE_PARENT),
MUX_GATE(CLK_TOP_MM_SEL, "mm_sel", mm_parents, 0x0040, 24, 4, 31),
/* CLK_CFG_1 */
MUX_GATE(CLK_TOP_PWM_SEL, "pwm_sel", pwm_parents, 0x0050, 0, 2, 7),
@@ -581,7 +584,9 @@ static const struct mtk_composite top_muxes[] = {
*/
MUX_GATE_FLAGS(CLK_TOP_DPI0_SEL, "dpi0_sel", dpi0_parents, 0x00a0, 0, 3, 7, 0),
MUX_GATE(CLK_TOP_IRDA_SEL, "irda_sel", irda_parents, 0x00a0, 8, 2, 15),
- MUX_GATE(CLK_TOP_CCI400_SEL, "cci400_sel", cci400_parents, 0x00a0, 16, 3, 23),
+ MUX_GATE_FLAGS(CLK_TOP_CCI400_SEL, "cci400_sel",
+ cci400_parents, 0x00a0, 16, 3, 23,
+ CLK_IS_CRITICAL | CLK_SET_RATE_PARENT),
MUX_GATE(CLK_TOP_AUD_1_SEL, "aud_1_sel", aud_1_parents, 0x00a0, 24, 2, 31),
/* CLK_CFG_7 */
MUX_GATE(CLK_TOP_AUD_2_SEL, "aud_2_sel", aud_2_parents, 0x00b0, 0, 2, 7),
@@ -596,7 +601,8 @@ static const struct mtk_composite top_muxes[] = {
MUX_GATE(CLK_TOP_MSDC50_2_H_SEL, "msdc50_2_h_sel", msdc50_2_h_parents, 0x00d0, 0, 3, 7),
MUX_GATE(CLK_TOP_HDCP_SEL, "hdcp_sel", hdcp_parents, 0x00d0, 8, 2, 15),
MUX_GATE(CLK_TOP_HDCP_24M_SEL, "hdcp_24m_sel", hdcp_24m_parents, 0x00d0, 16, 2, 23),
- MUX(CLK_TOP_RTC_SEL, "rtc_sel", rtc_parents, 0x00d0, 24, 2),
+ MUX_FLAGS(CLK_TOP_RTC_SEL, "rtc_sel", rtc_parents, 0x00d0, 24, 2,
+ CLK_IS_CRITICAL | CLK_SET_RATE_PARENT),
DIV_GATE(CLK_TOP_APLL1_DIV0, "apll1_div0", "aud_1_sel", 0x12c, 8, 0x120, 4, 24),
DIV_GATE(CLK_TOP_APLL1_DIV1, "apll1_div1", "aud_1_sel", 0x12c, 9, 0x124, 8, 0),
@@ -846,23 +852,8 @@ static const struct mtk_clk_rst_desc clk_rst_desc[] = {
}
};
-static struct clk_hw_onecell_data *mt8173_top_clk_data;
-static struct clk_hw_onecell_data *mt8173_pll_clk_data;
static struct clk_hw_onecell_data *infra_clk_data;
-static void mtk_clk_enable_critical(void)
-{
- if (!mt8173_top_clk_data || !mt8173_pll_clk_data)
- return;
-
- clk_prepare_enable(mt8173_pll_clk_data->hws[CLK_APMIXED_ARMCA15PLL]->clk);
- clk_prepare_enable(mt8173_pll_clk_data->hws[CLK_APMIXED_ARMCA7PLL]->clk);
- clk_prepare_enable(mt8173_top_clk_data->hws[CLK_TOP_MEM_SEL]->clk);
- clk_prepare_enable(mt8173_top_clk_data->hws[CLK_TOP_DDRPHYCFG_SEL]->clk);
- clk_prepare_enable(mt8173_top_clk_data->hws[CLK_TOP_CCI400_SEL]->clk);
- clk_prepare_enable(mt8173_top_clk_data->hws[CLK_TOP_RTC_SEL]->clk);
-}
-
static int clk_mt8173_topck_probe(struct platform_device *pdev)
{
struct device_node *node = pdev->dev.of_node;
@@ -874,7 +865,7 @@ static int clk_mt8173_topck_probe(struct platform_device *pdev)
if (IS_ERR(base))
return PTR_ERR(base);
- mt8173_top_clk_data = clk_data = mtk_alloc_clk_data(CLK_TOP_NR_CLK);
+ clk_data = mtk_alloc_clk_data(CLK_TOP_NR_CLK);
if (IS_ERR_OR_NULL(clk_data))
return -ENOMEM;
@@ -896,7 +887,6 @@ static int clk_mt8173_topck_probe(struct platform_device *pdev)
if (r)
goto unregister_composites;
- mtk_clk_enable_critical();
return 0;
unregister_composites:
@@ -1051,8 +1041,10 @@ static const struct mtk_pll_div_table mmpll_div_table[] = {
};
static const struct mtk_pll_data plls[] = {
- PLL(CLK_APMIXED_ARMCA15PLL, "armca15pll", 0x200, 0x20c, 0, 0, 21, 0x204, 24, 0x0, 0x204, 0),
- PLL(CLK_APMIXED_ARMCA7PLL, "armca7pll", 0x210, 0x21c, 0, 0, 21, 0x214, 24, 0x0, 0x214, 0),
+ PLL(CLK_APMIXED_ARMCA15PLL, "armca15pll", 0x200, 0x20c, 0, PLL_AO,
+ 21, 0x204, 24, 0x0, 0x204, 0),
+ PLL(CLK_APMIXED_ARMCA7PLL, "armca7pll", 0x210, 0x21c, 0, PLL_AO,
+ 21, 0x214, 24, 0x0, 0x214, 0),
PLL(CLK_APMIXED_MAINPLL, "mainpll", 0x220, 0x22c, 0xf0000100, HAVE_RST_BAR, 21, 0x220, 4, 0x0, 0x224, 0),
PLL(CLK_APMIXED_UNIVPLL, "univpll", 0x230, 0x23c, 0xfe000000, HAVE_RST_BAR, 7, 0x230, 4, 0x0, 0x234, 14),
PLL_B(CLK_APMIXED_MMPLL, "mmpll", 0x240, 0x24c, 0, 0, 21, 0x244, 24, 0x0, 0x244, 0, mmpll_div_table),
@@ -1079,7 +1071,7 @@ static int clk_mt8173_apmixed_probe(struct platform_device *pdev)
if (!base)
return PTR_ERR(base);
- mt8173_pll_clk_data = clk_data = mtk_alloc_clk_data(CLK_APMIXED_NR_CLK);
+ clk_data = mtk_alloc_clk_data(CLK_APMIXED_NR_CLK);
if (IS_ERR_OR_NULL(clk_data))
return -ENOMEM;
@@ -1104,7 +1096,6 @@ static int clk_mt8173_apmixed_probe(struct platform_device *pdev)
if (r)
goto unregister_ref2usb;
- mtk_clk_enable_critical();
return 0;
unregister_ref2usb:
--
2.39.0
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