[v5,05/44] clk: davinci: Add platform information for TI DM355 PLL

Commit Message

David Lechner Jan. 8, 2018, 2:17 a.m. UTC

This adds platform-specific declarations for the PLL clocks on TI
DaVinci 355 based systems.

Signed-off-by: David Lechner <[e-mail]>
---
 drivers/clk/davinci/Makefile    |  1 +
 drivers/clk/davinci/pll-dm355.c | 40 ++++++++++++++++++++++++++++++++++++++++
 include/linux/clk/davinci.h     |  1 +
 3 files changed, 42 insertions(+)
 create mode 100644 drivers/clk/davinci/pll-dm355.c

Comments

Sekhar Nori Jan. 16, 2018, 8:38 a.m. UTC | #1

On Monday 08 January 2018 07:47 AM, David Lechner wrote:
> This adds platform-specific declarations for the PLL clocks on TI
> DaVinci 355 based systems.

DM355

> 
> Signed-off-by: David Lechner <[e-mail]>

Reviewed-by: Sekhar Nori <[e-mail]>

Thanks,
Sekhar

Patch

diff --git a/drivers/clk/davinci/Makefile b/drivers/clk/davinci/Makefile
index 13049d4..6720bd0 100644
--- a/drivers/clk/davinci/Makefile
+++ b/drivers/clk/davinci/Makefile
@@ -4,4 +4,5 @@  ifeq ($(CONFIG_COMMON_CLK), y)
 obj-y += pll.o
 obj-$(CONFIG_ARCH_DAVINCI_DA830)	+= pll-da830.o
 obj-$(CONFIG_ARCH_DAVINCI_DA850)	+= pll-da850.o
+obj-$(CONFIG_ARCH_DAVINCI_DM355)	+= pll-dm355.o
 endif
diff --git a/drivers/clk/davinci/pll-dm355.c b/drivers/clk/davinci/pll-dm355.c
new file mode 100644
index 0000000..972fd2b
--- /dev/null
+++ b/drivers/clk/davinci/pll-dm355.c
@@ -0,0 +1,40 @@ 
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * PLL clock descriptions for TI DM355
+ *
+ * Copyright (C) 2017 David Lechner <[e-mail]>
+ */
+
+#include <linux/init.h>
+#include <linux/types.h>
+
+#include "pll.h"
+
+static const struct davinci_pll_divclk_info dm355_pll1_divclk_info[] __initconst = {
+	DIVCLK(1, pll1_sysclk1, pll1, DIVCLK_FIXED_DIV),
+	DIVCLK(2, pll1_sysclk2, pll1, DIVCLK_FIXED_DIV),
+	DIVCLK(3, pll1_sysclk3, pll1, 0),
+	DIVCLK(4, pll1_sysclk4, pll1, 0),
+	{ }
+};
+
+static const struct davinci_pll_divclk_info dm355_pll2_divclk_info[] __initconst = {
+	DIVCLK(1, pll2_sysclk1, pll2, DIVCLK_FIXED_DIV),
+	{ }
+};
+
+void __init dm355_pll_clk_init(void __iomem *pll1, void __iomem *pll2)
+{
+	const struct davinci_pll_divclk_info *info;
+
+	davinci_pll_clk_register("pll1", "ref_clk", pll1);
+	for (info = dm355_pll1_divclk_info; info->name; info++)
+		davinci_pll_divclk_register(info, pll1);
+	davinci_pll_aux_clk_register("pll1_aux_clk", "ref_clk", pll1);
+	davinci_pll_bpdiv_clk_register("pll1_sysclkbp", "ref_clk", pll1);
+
+	davinci_pll_clk_register("pll2", "ref_clk", pll2);
+	for (info = dm355_pll2_divclk_info; info->name; info++)
+		davinci_pll_divclk_register(info, pll2);
+	davinci_pll_bpdiv_clk_register("pll2_sysclkbp", "ref_clk", pll2);
+}
diff --git a/include/linux/clk/davinci.h b/include/linux/clk/davinci.h
index 7b08fe0..95333fe 100644
--- a/include/linux/clk/davinci.h
+++ b/include/linux/clk/davinci.h
@@ -11,5 +11,6 @@ 
 
 void da830_pll_clk_init(void __iomem *pll);
 void da850_pll_clk_init(void __iomem *pll0, void __iomem *pll1);
+void dm355_pll_clk_init(void __iomem *pll1, void __iomem *pll2);
 
 #endif /* __LINUX_CLK_DAVINCI_H__ */