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clk: renesas: r8a7795: Obtain mode pin values from R-Car RST driver 

Obtain the values of the mode pins from the R-Car RST driver, which
relies on the presence in DT of a device node for the RST module.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Dirk Behme <dirk.behme@de.bosch.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
hifive-unleashed-5.1
Geert Uytterhoeven 2016-06-01 14:54:10 +02:00
parent f84c9c3ca9
commit 969921e0d2
1 changed files with 7 additions and 1 deletions
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8
drivers/clk/renesas/r8a7795-cpg-mssr.c
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@ -15,6 +15,7 @@
#include <linux/device.h>
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/soc/renesas/rcar-rst.h>
#include <dt-bindings/clock/r8a7795-cpg-mssr.h>
@ -311,7 +312,12 @@ static const struct rcar_gen3_cpg_pll_config cpg_pll_configs[16] __initconst = {
static int __init r8a7795_cpg_mssr_init(struct device *dev)
{
const struct rcar_gen3_cpg_pll_config *cpg_pll_config;
u32 cpg_mode = rcar_gen3_read_mode_pins();
u32 cpg_mode;
int error;
error = rcar_rst_read_mode_pins(&cpg_mode);
if (error)
return error;
cpg_pll_config = &cpg_pll_configs[CPG_PLL_CONFIG_INDEX(cpg_mode)];
if (!cpg_pll_config->extal_div) {