linux-kernel - [PATCH v2 5/5] clk: uniphier: Add SoC-glue clock source selector support for Pro4

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Date:   Wed,  6 Oct 2021 20:09:15 +0900
From:   Kunihiko Hayashi <hayashi.kunihiko@...ionext.com>
To:     Michael Turquette <mturquette@...libre.com>,
        Stephen Boyd <sboyd@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Masami Hiramatsu <mhiramat@...nel.org>
Cc:     linux-clk@...r.kernel.org, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Kunihiko Hayashi <hayashi.kunihiko@...ionext.com>
Subject: [PATCH v2 5/5] clk: uniphier: Add SoC-glue clock source selector support for Pro4

Add SoC-glue clock source selector for ahci controller on UniPhier SoCs.
Currently this supports Pro4 only.

Signed-off-by: Kunihiko Hayashi <hayashi.kunihiko@...ionext.com>
---
 drivers/clk/uniphier/clk-uniphier-core.c |  5 +++++
 drivers/clk/uniphier/clk-uniphier-sys.c  | 17 +++++++++++++++++
 drivers/clk/uniphier/clk-uniphier.h      |  1 +
 3 files changed, 23 insertions(+)

diff --git a/drivers/clk/uniphier/clk-uniphier-core.c b/drivers/clk/uniphier/clk-uniphier-core.c
index 0a947e757d13..46c66fac48e6 100644
--- a/drivers/clk/uniphier/clk-uniphier-core.c
+++ b/drivers/clk/uniphier/clk-uniphier-core.c
@@ -210,6 +210,11 @@ static const struct of_device_id uniphier_clk_match[] = {
 		.compatible = "socionext,uniphier-nx1-peri-clock",
 		.data = uniphier_pro4_peri_clk_data,
 	},
+	/* SoC-glue clock */
+	{
+		.compatible = "socionext,uniphier-pro4-sg-clock",
+		.data = uniphier_pro4_sg_clk_data,
+	},
 	{ /* sentinel */ }
 };
 
diff --git a/drivers/clk/uniphier/clk-uniphier-sys.c b/drivers/clk/uniphier/clk-uniphier-sys.c
index e8bf85cd2d30..0180470b24db 100644
--- a/drivers/clk/uniphier/clk-uniphier-sys.c
+++ b/drivers/clk/uniphier/clk-uniphier-sys.c
@@ -330,3 +330,20 @@ const struct uniphier_clk_data uniphier_nx1_sys_clk_data[] = {
 			     "cpll/32"),
 	{ /* sentinel */ }
 };
+
+const struct uniphier_clk_data uniphier_pro4_sg_clk_data[] = {
+	UNIPHIER_CLK_DIV("gpll", 4),
+	{
+		.name = "sata-ref",
+		.type = UNIPHIER_CLK_TYPE_MUX,
+		.idx = 0,
+		.data.mux = {
+			.parent_names = { "gpll/4", "ref", },
+			.num_parents = 2,
+			.reg = 0x1a28,
+			.masks = { 0x1, 0x1, },
+			.vals  = { 0x0, 0x1, },
+		},
+	},
+	{ /* sentinel */ }
+};
diff --git a/drivers/clk/uniphier/clk-uniphier.h b/drivers/clk/uniphier/clk-uniphier.h
index c54fb7895889..dea0c7829aee 100644
--- a/drivers/clk/uniphier/clk-uniphier.h
+++ b/drivers/clk/uniphier/clk-uniphier.h
@@ -155,5 +155,6 @@ extern const struct uniphier_clk_data uniphier_ld4_mio_clk_data[];
 extern const struct uniphier_clk_data uniphier_pro5_sd_clk_data[];
 extern const struct uniphier_clk_data uniphier_ld4_peri_clk_data[];
 extern const struct uniphier_clk_data uniphier_pro4_peri_clk_data[];
+extern const struct uniphier_clk_data uniphier_pro4_sg_clk_data[];
 
 #endif /* __CLK_UNIPHIER_H__ */
-- 
2.7.4