From: Weiyi Lu <weiyi.lu@mediatek.com>
To: Nicolas Boichat <drinkcat@chromium.org>,
Matthias Brugger <matthias.bgg@gmail.com>,
Stephen Boyd <sboyd@kernel.org>, Rob Herring <robh@kernel.org>
Cc: Dehui Sun <dehui.sun@mediatek.com>,
James Liao <jamesjj.liao@mediatek.com>,
Weiyi Lu <weiyi.lu@mediatek.com>,
srv_heupstream@mediatek.com, linux-kernel@vger.kernel.org,
stable@vger.kernel.org, Fan Chen <fan.chen@mediatek.com>,
linux-mediatek@lists.infradead.org, linux-clk@vger.kernel.org,
linux-arm-kernel@lists.infradead.org
Subject: [PATCH v2] clk: mediatek: mt8183: Register 13MHz clock earlier for clocksource
Date: Mon, 10 Jun 2019 10:16:09 +0800 [thread overview]
Message-ID: <1560132969-1960-1-git-send-email-weiyi.lu@mediatek.com> (raw)
The 13MHz clock should be registered before clocksource driver is
initialized. Use CLK_OF_DECLARE_DRIVER() to guarantee.
Signed-off-by: Weiyi Lu <weiyi.lu@mediatek.com>
---
drivers/clk/mediatek/clk-mt8183.c | 46 +++++++++++++++++++++++++++++----------
1 file changed, 34 insertions(+), 12 deletions(-)
diff --git a/drivers/clk/mediatek/clk-mt8183.c b/drivers/clk/mediatek/clk-mt8183.c
index 9d86510..bc01611 100644
--- a/drivers/clk/mediatek/clk-mt8183.c
+++ b/drivers/clk/mediatek/clk-mt8183.c
@@ -25,9 +25,11 @@
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(struct platform_device *pdev)
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)
--
1.8.1.1.dirty
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next reply other threads:[~2019-06-10 2:16 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-06-10 2:16 Weiyi Lu [this message]
2019-06-10 5:53 ` [PATCH v2] clk: mediatek: mt8183: Register 13MHz clock earlier for clocksource Greg KH
2019-06-25 22:15 ` Stephen Boyd
2019-06-26 1:28 ` Weiyi Lu
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