brcm2708: update to latest version

As usual these patches were extracted from the raspberry pi repo:
https://github.com/raspberrypi/linux/commits/rpi-4.4.y

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>

1 files changed, 0 insertions, 108 deletions

diff --git a/target/linux/brcm2708/patches-4.4/0122-Extend-clock-timeout-fix-modprobe-baudrate-parameter.patch b/target/linux/brcm2708/patches-4.4/0122-Extend-clock-timeout-fix-modprobe-baudrate-parameter.patch
deleted file mode 100644
index 1059ae3445..0000000000
--- a/target/linux/brcm2708/patches-4.4/0122-Extend-clock-timeout-fix-modprobe-baudrate-parameter.patch
+++ /dev/null
@@ -1,108 +0,0 @@
-From d0390ae0ff774d8e7b5b4d5f38c33726354996bc Mon Sep 17 00:00:00 2001
-From: Devon Fyson <devonfyson@gmail.com>
-Date: Wed, 30 Dec 2015 16:40:47 -0500
-Subject: [PATCH 122/170] Extend clock timeout, fix modprobe baudrate
- parameter.
-
-Set the BSC_CLKT clock streching timeout to 35ms as per SMBus specs.\n- Increase priority of baudrate parameter passed to modprobe (in /etc/modprobe.d/*.conf or command line). Currently custom baudrates don't work because they are overridden by clock-frequency in the platform_device passed to the function.
----
- drivers/i2c/busses/i2c-bcm2708.c | 45 ++++++++++++++++++++++++++--------------
- 1 file changed, 29 insertions(+), 16 deletions(-)
-
---- a/drivers/i2c/busses/i2c-bcm2708.c
-+++ b/drivers/i2c/busses/i2c-bcm2708.c
-@@ -71,7 +71,8 @@
- 
- #define DRV_NAME		"bcm2708_i2c"
- 
--static unsigned int baudrate = CONFIG_I2C_BCM2708_BAUDRATE;
-+static unsigned int baudrate_default = CONFIG_I2C_BCM2708_BAUDRATE;
-+static unsigned int baudrate;
- module_param(baudrate, uint, S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP);
- MODULE_PARM_DESC(baudrate, "The I2C baudrate");
- 
-@@ -87,6 +88,7 @@ struct bcm2708_i2c {
- 	int irq;
- 	struct clk *clk;
- 	u32 cdiv;
-+	u32 clk_tout;
- 
- 	struct completion done;
- 
-@@ -126,7 +128,7 @@ static inline void bcm2708_bsc_fifo_fill
- 
- static inline int bcm2708_bsc_setup(struct bcm2708_i2c *bi)
- {
--	u32 cdiv, s;
-+	u32 cdiv, s, clk_tout;
- 	u32 c = BSC_C_I2CEN | BSC_C_INTD | BSC_C_ST | BSC_C_CLEAR_1;
- 	int wait_loops = I2C_WAIT_LOOP_COUNT;
- 
-@@ -134,12 +136,14 @@ static inline int bcm2708_bsc_setup(stru
- 	 * Use the value that we cached in the probe.
- 	 */
- 	cdiv = bi->cdiv;
-+	clk_tout = bi->clk_tout;
- 
- 	if (bi->msg->flags & I2C_M_RD)
- 		c |= BSC_C_INTR | BSC_C_READ;
- 	else
- 		c |= BSC_C_INTT;
- 
-+	bcm2708_wr(bi, BSC_CLKT, clk_tout);
- 	bcm2708_wr(bi, BSC_DIV, cdiv);
- 	bcm2708_wr(bi, BSC_A, bi->msg->addr);
- 	bcm2708_wr(bi, BSC_DLEN, bi->msg->len);
-@@ -312,21 +316,24 @@ static int bcm2708_i2c_probe(struct plat
- 	struct bcm2708_i2c *bi;
- 	struct i2c_adapter *adap;
- 	unsigned long bus_hz;
--	u32 cdiv;
--
--	if (pdev->dev.of_node) {
--		u32 bus_clk_rate;
--		pdev->id = of_alias_get_id(pdev->dev.of_node, "i2c");
--		if (pdev->id < 0) {
--			dev_err(&pdev->dev, "alias is missing\n");
--			return -EINVAL;
-+	u32 cdiv, clk_tout;
-+	
-+	if (!baudrate) {
-+		baudrate = baudrate_default;
-+		if (pdev->dev.of_node) {
-+			u32 bus_clk_rate;
-+			pdev->id = of_alias_get_id(pdev->dev.of_node, "i2c");
-+			if (pdev->id < 0) {
-+				dev_err(&pdev->dev, "alias is missing\n");
-+				return -EINVAL;
-+			}
-+			if (!of_property_read_u32(pdev->dev.of_node,
-+						"clock-frequency", &bus_clk_rate))
-+				baudrate = bus_clk_rate;
-+			else
-+				dev_warn(&pdev->dev,
-+					"Could not read clock-frequency property\n");
- 		}
--		if (!of_property_read_u32(pdev->dev.of_node,
--					"clock-frequency", &bus_clk_rate))
--			baudrate = bus_clk_rate;
--		else
--			dev_warn(&pdev->dev,
--				"Could not read clock-frequency property\n");
- 	}
- 
- 	regs = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-@@ -417,7 +424,13 @@ static int bcm2708_i2c_probe(struct plat
- 		cdiv = 0xffff;
- 		baudrate = bus_hz / cdiv;
- 	}
-+	
-+ 	clk_tout = 35/1000*baudrate; //35ms timeout as per SMBus specs.
-+ 	if (clk_tout > 0xffff)
-+		clk_tout = 0xffff;
-+	
- 	bi->cdiv = cdiv;
-+	bi->clk_tout = clk_tout;
- 
- 	dev_info(&pdev->dev, "BSC%d Controller at 0x%08lx (irq %d) (baudrate %d)\n",
- 		pdev->id, (unsigned long)regs->start, irq, baudrate);