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authorDavid Lechner <david@lechnology.com>2018-03-15 21:52:18 -0500
committerStephen Boyd <sboyd@kernel.org>2018-03-20 10:16:26 -0700
commit2d172691515961cad2abb4bf1b15d187bf2106cf (patch)
treeb855d46c04e99a680f1ecdacce09d67882a3dd0a /include
parentb6e37ce2371dac0d696332d8e74c110030ab47c3 (diff)
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clk: davinci: New driver for davinci PLL clocks
This adds a new driver for mach-davinci PLL clocks. This is porting the code from arch/arm/mach-davinci/clock.c to the common clock framework. Additionally, it adds device tree support for these clocks. The ifeq ($(CONFIG_COMMON_CLK), y) in the Makefile is needed to prevent compile errors until the clock code in arch/arm/mach-davinci is removed. Note: although there are similar clocks for TI Keystone we are not able to share the code for a few reasons. The keystone clocks are device tree only and use legacy one-node-per-clock bindings. Also the register layouts are a bit different, which would add even more if/else mess to the keystone clocks. And the keystone PLL driver doesn't support setting clock rates. Signed-off-by: David Lechner <david@lechnology.com> Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Diffstat (limited to 'include')
-rw-r--r--include/linux/platform_data/clk-davinci-pll.h21
1 files changed, 21 insertions, 0 deletions
diff --git a/include/linux/platform_data/clk-davinci-pll.h b/include/linux/platform_data/clk-davinci-pll.h
new file mode 100644
index 000000000000..e55dab1d578b
--- /dev/null
+++ b/include/linux/platform_data/clk-davinci-pll.h
@@ -0,0 +1,21 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * PLL clock driver for TI Davinci SoCs
+ *
+ * Copyright (C) 2018 David Lechner <david@lechnology.com>
+ */
+
+#ifndef __LINUX_PLATFORM_DATA_CLK_DAVINCI_PLL_H__
+#define __LINUX_PLATFORM_DATA_CLK_DAVINCI_PLL_H__
+
+#include <linux/regmap.h>
+
+/**
+ * davinci_pll_platform_data
+ * @cfgchip: CFGCHIP syscon regmap
+ */
+struct davinci_pll_platform_data {
+ struct regmap *cfgchip;
+};
+
+#endif /* __LINUX_PLATFORM_DATA_CLK_DAVINCI_PLL_H__ */