diff options
| author | Amit Pundir <amit.pundir@linaro.org> | 2017-08-01 10:52:52 +0530 |
|---|---|---|
| committer | Amit Pundir <amit.pundir@linaro.org> | 2017-08-01 11:26:49 +0530 |
| commit | b43282fc74615c71e3a58fa92a4fe62f5374acd6 (patch) | |
| tree | 54c3e0f148beedd088ddb8e40268cf1c07b3bc08 /drivers/media/pci/saa7134/saa7134-i2c.c | |
| parent | f83fb557207250de93aa8882df19acfc7fe7ace7 (diff) | |
| parent | 37f3f1536a86154b0c1cc2586fa6c513e79a440e (diff) | |
Merge branch 'linux-linaro-lsk-v3.18' into linux-linaro-lsk-v3.18-androidlsk-v3.18-17.08-android
Conflicts:
arch/arm64/kernel/setup.c
AOSP Change-Id: I98624593273ae4c90ae299f063d26f35a39a0a31
(upstream commit 12d11817eaaf "arm64: Move /proc/cpuinfo handling code")
moved /proc/cpuinfo handling code from
arch/arm64/kernel/{setup.c to cpuinfo.c}.
Signed-off-by: Amit Pundir <amit.pundir@linaro.org>
Diffstat (limited to 'drivers/media/pci/saa7134/saa7134-i2c.c')
| -rw-r--r-- | drivers/media/pci/saa7134/saa7134-i2c.c | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/drivers/media/pci/saa7134/saa7134-i2c.c b/drivers/media/pci/saa7134/saa7134-i2c.c index f4da674e7f26..ae651007ee0f 100644 --- a/drivers/media/pci/saa7134/saa7134-i2c.c +++ b/drivers/media/pci/saa7134/saa7134-i2c.c @@ -350,12 +350,43 @@ static struct i2c_client saa7134_client_template = { /* ----------------------------------------------------------- */ +/* On Medion 7134 reading EEPROM needs DVB-T demod i2c gate open */ +static void saa7134_i2c_eeprom_md7134_gate(struct saa7134_dev *dev) +{ + u8 subaddr = 0x7, dmdregval; + u8 data[2]; + int ret; + struct i2c_msg i2cgatemsg_r[] = { {.addr = 0x08, .flags = 0, + .buf = &subaddr, .len = 1}, + {.addr = 0x08, + .flags = I2C_M_RD, + .buf = &dmdregval, .len = 1} + }; + struct i2c_msg i2cgatemsg_w[] = { {.addr = 0x08, .flags = 0, + .buf = data, .len = 2} }; + + ret = i2c_transfer(&dev->i2c_adap, i2cgatemsg_r, 2); + if ((ret == 2) && (dmdregval & 0x2)) { + pr_debug("%s: DVB-T demod i2c gate was left closed\n", + dev->name); + + data[0] = subaddr; + data[1] = (dmdregval & ~0x2); + if (i2c_transfer(&dev->i2c_adap, i2cgatemsg_w, 1) != 1) + pr_err("%s: EEPROM i2c gate open failure\n", + dev->name); + } +} + static int saa7134_i2c_eeprom(struct saa7134_dev *dev, unsigned char *eedata, int len) { unsigned char buf; int i,err; + if (dev->board == SAA7134_BOARD_MD7134) + saa7134_i2c_eeprom_md7134_gate(dev); + dev->i2c_client.addr = 0xa0 >> 1; buf = 0; if (1 != (err = i2c_master_send(&dev->i2c_client,&buf,1))) { |