diff options
Diffstat (limited to 'target/linux/mvebu/patches-3.10/0035-i2c-mv64xxx-Set-bus-frequency-to-100kHz-if-clock-fre.patch')
| -rw-r--r-- | target/linux/mvebu/patches-3.10/0035-i2c-mv64xxx-Set-bus-frequency-to-100kHz-if-clock-fre.patch | 51 |
1 files changed, 0 insertions, 51 deletions
diff --git a/target/linux/mvebu/patches-3.10/0035-i2c-mv64xxx-Set-bus-frequency-to-100kHz-if-clock-fre.patch b/target/linux/mvebu/patches-3.10/0035-i2c-mv64xxx-Set-bus-frequency-to-100kHz-if-clock-fre.patch deleted file mode 100644 index 4de7da9..0000000 --- a/target/linux/mvebu/patches-3.10/0035-i2c-mv64xxx-Set-bus-frequency-to-100kHz-if-clock-fre.patch +++ /dev/null @@ -1,51 +0,0 @@ -From 76de914223ec09274a7857e0d8cd7b739205dc3c Mon Sep 17 00:00:00 2001 -From: Gregory CLEMENT <gregory.clement@free-electrons.com> -Date: Fri, 21 Jun 2013 15:32:06 +0200 -Subject: [PATCH 035/203] i2c: mv64xxx: Set bus frequency to 100kHz if - clock-frequency is not provided - -This commit adds checking whether clock-frequency property acquisition -has succeeded. If not, the frequency is set to 100kHz by default. - -The Device Tree binding documentation is updated accordingly. - -Based on the intials patches from Zbigniew Bodek - -Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com> -Signed-off-by: Zbigniew Bodek <zbb@semihalf.com> -Signed-off-by: Wolfram Sang <wsa@the-dreams.de> ---- - Documentation/devicetree/bindings/i2c/i2c-mv64xxx.txt | 6 +++++- - drivers/i2c/busses/i2c-mv64xxx.c | 6 +++++- - 2 files changed, 10 insertions(+), 2 deletions(-) - ---- a/Documentation/devicetree/bindings/i2c/i2c-mv64xxx.txt -+++ b/Documentation/devicetree/bindings/i2c/i2c-mv64xxx.txt -@@ -6,7 +6,11 @@ Required properties : - - reg : Offset and length of the register set for the device - - compatible : Should be "marvell,mv64xxx-i2c" - - interrupts : The interrupt number -- - clock-frequency : Desired I2C bus clock frequency in Hz. -+ -+Optional properties : -+ -+ - clock-frequency : Desired I2C bus clock frequency in Hz. If not set the -+default frequency is 100kHz - - Examples: - ---- a/drivers/i2c/busses/i2c-mv64xxx.c -+++ b/drivers/i2c/busses/i2c-mv64xxx.c -@@ -580,7 +580,11 @@ mv64xxx_of_config(struct mv64xxx_i2c_dat - goto out; - } - tclk = clk_get_rate(drv_data->clk); -- of_property_read_u32(np, "clock-frequency", &bus_freq); -+ -+ rc = of_property_read_u32(np, "clock-frequency", &bus_freq); -+ if (rc) -+ bus_freq = 100000; /* 100kHz by default */ -+ - if (!mv64xxx_find_baud_factors(bus_freq, tclk, - &drv_data->freq_n, &drv_data->freq_m)) { - rc = -EINVAL; |