diff options
| author | Timur Tabi <timur@freescale.com> | 2011-12-01 19:52:47 -0600 |
|---|---|---|
| committer | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2011-12-02 10:37:18 +0000 |
| commit | 6132725eac521b89dee3d58df3c6d04a1e50844c (patch) | |
| tree | 994019cc02aacabc13f06353b91ee3525c47b0c6 /sound/soc/fsl/p1022_ds.c | |
| parent | a806aa9207ad59933464efbe6009394723713c0d (diff) | |
ASoC: fsl/powerpc: don't rely on the cell-index property
Instead of using the 'cell-index' property in the I2C adapter node to
determine the adapter number, just query the i2c_adapter object directly.
Previously, the I2C nodes always appeared in cell-index order, so the
dynamic numbering coincided with the cell-index property. With commit
ab827d97 ("powerpc/85xx: Rework P1022DS device tree"), the I2C nodes are
unintentionally reversed in the device tree, and so the machine driver
guesses the wrong I2C adapter number.
Signed-off-by: Timur Tabi <timur@freescale.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Diffstat (limited to 'sound/soc/fsl/p1022_ds.c')
| -rw-r--r-- | sound/soc/fsl/p1022_ds.c | 13 |
1 files changed, 8 insertions, 5 deletions
diff --git a/sound/soc/fsl/p1022_ds.c b/sound/soc/fsl/p1022_ds.c index 309162652287..a5d4e80a9cf4 100644 --- a/sound/soc/fsl/p1022_ds.c +++ b/sound/soc/fsl/p1022_ds.c @@ -14,6 +14,7 @@ #include <linux/interrupt.h> #include <linux/of_device.h> #include <linux/slab.h> +#include <linux/of_i2c.h> #include <sound/soc.h> #include <asm/fsl_guts.h> @@ -252,8 +253,9 @@ static int get_parent_cell_index(struct device_node *np) static int codec_node_dev_name(struct device_node *np, char *buf, size_t len) { const u32 *iprop; - int bus, addr; + int addr; char temp[DAI_NAME_SIZE]; + struct i2c_client *i2c; of_modalias_node(np, temp, DAI_NAME_SIZE); @@ -263,11 +265,12 @@ static int codec_node_dev_name(struct device_node *np, char *buf, size_t len) addr = be32_to_cpup(iprop); - bus = get_parent_cell_index(np); - if (bus < 0) - return bus; + /* We need the adapter number */ + i2c = of_find_i2c_device_by_node(np); + if (!i2c) + return -ENODEV; - snprintf(buf, len, "%s.%u-%04x", temp, bus, addr); + snprintf(buf, len, "%s.%u-%04x", temp, i2c->adapter->nr, addr); return 0; } |