Messages in this thread Patch in this message | | | From | Greg Kroah-Hartman <> | Subject | [PATCH 5.2 115/131] clk: mediatek: mt8183: Register 13MHz clock earlier for clocksource | Date | Mon, 5 Aug 2019 15:03:22 +0200 |
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From: Weiyi Lu <weiyi.lu@mediatek.com>
commit c93d059a80450af99dd6c0e8c36790579343675a upstream.
The 13MHz clock should be registered before clocksource driver is initialized. Use CLK_OF_DECLARE_DRIVER() to guarantee.
Fixes: acddfc2c261b ("clk: mediatek: Add MT8183 clock support") Cc: <stable@vger.kernel.org> Signed-off-by: Weiyi Lu <weiyi.lu@mediatek.com> Signed-off-by: Stephen Boyd <sboyd@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
--- drivers/clk/mediatek/clk-mt8183.c | 46 ++++++++++++++++++++++++++++---------- 1 file changed, 34 insertions(+), 12 deletions(-)
--- a/drivers/clk/mediatek/clk-mt8183.c +++ b/drivers/clk/mediatek/clk-mt8183.c @@ -25,9 +25,11 @@ static const struct mtk_fixed_clk top_fi FIXED_CLK(CLK_TOP_UNIVP_192M, "univpll_192m", "univpll", 192000000), }; +static const struct mtk_fixed_factor top_early_divs[] = { + FACTOR(CLK_TOP_CLK13M, "clk13m", "clk26m", 1, 2), +}; + static const struct mtk_fixed_factor top_divs[] = { - FACTOR(CLK_TOP_CLK13M, "clk13m", "clk26m", 1, - 2), FACTOR(CLK_TOP_F26M_CK_D2, "csw_f26m_ck_d2", "clk26m", 1, 2), FACTOR(CLK_TOP_SYSPLL_CK, "syspll_ck", "mainpll", 1, @@ -1167,37 +1169,57 @@ static int clk_mt8183_apmixed_probe(stru return of_clk_add_provider(node, of_clk_src_onecell_get, clk_data); } +static struct clk_onecell_data *top_clk_data; + +static void clk_mt8183_top_init_early(struct device_node *node) +{ + int i; + + top_clk_data = mtk_alloc_clk_data(CLK_TOP_NR_CLK); + + for (i = 0; i < CLK_TOP_NR_CLK; i++) + top_clk_data->clks[i] = ERR_PTR(-EPROBE_DEFER); + + mtk_clk_register_factors(top_early_divs, ARRAY_SIZE(top_early_divs), + top_clk_data); + + of_clk_add_provider(node, of_clk_src_onecell_get, top_clk_data); +} + +CLK_OF_DECLARE_DRIVER(mt8183_topckgen, "mediatek,mt8183-topckgen", + clk_mt8183_top_init_early); + static int clk_mt8183_top_probe(struct platform_device *pdev) { struct resource *res = platform_get_resource(pdev, IORESOURCE_MEM, 0); void __iomem *base; - struct clk_onecell_data *clk_data; struct device_node *node = pdev->dev.of_node; base = devm_ioremap_resource(&pdev->dev, res); if (IS_ERR(base)) return PTR_ERR(base); - clk_data = mtk_alloc_clk_data(CLK_TOP_NR_CLK); - mtk_clk_register_fixed_clks(top_fixed_clks, ARRAY_SIZE(top_fixed_clks), - clk_data); + top_clk_data); + + mtk_clk_register_factors(top_early_divs, ARRAY_SIZE(top_early_divs), + top_clk_data); - mtk_clk_register_factors(top_divs, ARRAY_SIZE(top_divs), clk_data); + mtk_clk_register_factors(top_divs, ARRAY_SIZE(top_divs), top_clk_data); mtk_clk_register_muxes(top_muxes, ARRAY_SIZE(top_muxes), - node, &mt8183_clk_lock, clk_data); + node, &mt8183_clk_lock, top_clk_data); mtk_clk_register_composites(top_aud_muxes, ARRAY_SIZE(top_aud_muxes), - base, &mt8183_clk_lock, clk_data); + base, &mt8183_clk_lock, top_clk_data); mtk_clk_register_composites(top_aud_divs, ARRAY_SIZE(top_aud_divs), - base, &mt8183_clk_lock, clk_data); + base, &mt8183_clk_lock, top_clk_data); mtk_clk_register_gates(node, top_clks, ARRAY_SIZE(top_clks), - clk_data); + top_clk_data); - return of_clk_add_provider(node, of_clk_src_onecell_get, clk_data); + return of_clk_add_provider(node, of_clk_src_onecell_get, top_clk_data); } static int clk_mt8183_infra_probe(struct platform_device *pdev)
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