OpenWrt
/branches/18.06.1/target/linux/brcm63xx/patches-4.9/001-4.12-04-spi-bcm63xx-hsspi-allow-providing-clock-rate-through.patch |
@@ -0,0 +1,35 @@ |
From d03f23df6ff47898d76f06b3aa5dadcfa1ec8f4f Mon Sep 17 00:00:00 2001 |
From: Jonas Gorski <jonas.gorski@gmail.com> |
Date: Sun, 19 Feb 2017 23:40:22 +0100 |
Subject: [PATCH 1/3] spi/bcm63xx-hsspi: allow providing clock rate through a |
second clock |
|
Instead of requiring the hsspi clock to have a rate, allow using a second |
clock for providing the Hz rate, which is probably more correct anyway. |
|
Signed-off-by: Jonas Gorski <jonas.gorski@gmail.com> |
--- |
drivers/spi/spi-bcm63xx-hsspi.c | 12 ++++++++++-- |
1 file changed, 10 insertions(+), 2 deletions(-) |
|
--- a/drivers/spi/spi-bcm63xx-hsspi.c |
+++ b/drivers/spi/spi-bcm63xx-hsspi.c |
@@ -351,8 +351,16 @@ static int bcm63xx_hsspi_probe(struct pl |
return PTR_ERR(clk); |
|
rate = clk_get_rate(clk); |
- if (!rate) |
- return -EINVAL; |
+ if (!rate) { |
+ struct clk *pll_clk = devm_clk_get(dev, "pll"); |
+ |
+ if (IS_ERR(pll_clk)) |
+ return PTR_ERR(pll_clk); |
+ |
+ rate = clk_get_rate(pll_clk); |
+ if (!rate) |
+ return -EINVAL; |
+ } |
|
ret = clk_prepare_enable(clk); |
if (ret) |