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authorBen Dooks <ben-linux@fluff.org>2008-10-31 12:10:27 -0400
committerBen Dooks <ben-linux@fluff.org>2008-12-16 15:26:06 -0500
commit6a039cabba3ddd556643156ce0a7cd07da456b20 (patch)
tree184f6e853397de0634b6f2aa90245887402016bd /drivers/i2c/busses
parent8be310a6dea491b28f81672752d9d2c7fc25cdd3 (diff)
i2c-s3c2410: Remove default platform data.
The platform data should now always be present when the device is initialised, so we can remove the default platform data in the driver. All the device initialisation points in the board specific code should already have been changed to initialise this as necessary. Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Diffstat (limited to 'drivers/i2c/busses')
-rw-r--r--drivers/i2c/busses/i2c-s3c2410.c39
1 files changed, 8 insertions, 31 deletions
diff --git a/drivers/i2c/busses/i2c-s3c2410.c b/drivers/i2c/busses/i2c-s3c2410.c
index 0aa0142de14f..d6343e2c5889 100644
--- a/drivers/i2c/busses/i2c-s3c2410.c
+++ b/drivers/i2c/busses/i2c-s3c2410.c
@@ -77,16 +77,7 @@ struct s3c24xx_i2c {
77#endif 77#endif
78}; 78};
79 79
80/* default platform data to use if not supplied in the platform_device 80/* default platform data removed, dev should always carry data. */
81*/
82
83static struct s3c2410_platform_i2c s3c24xx_i2c_default_platform = {
84 .flags = 0,
85 .slave_addr = 0x10,
86 .bus_freq = 100*1000,
87 .max_freq = 400*1000,
88 .sda_delay = S3C2410_IICLC_SDA_DELAY5 | S3C2410_IICLC_FILTER_ON,
89};
90 81
91/* s3c24xx_i2c_is2440() 82/* s3c24xx_i2c_is2440()
92 * 83 *
@@ -100,22 +91,6 @@ static inline int s3c24xx_i2c_is2440(struct s3c24xx_i2c *i2c)
100 return !strcmp(pdev->name, "s3c2440-i2c"); 91 return !strcmp(pdev->name, "s3c2440-i2c");
101} 92}
102 93
103
104/* s3c24xx_i2c_get_platformdata
105 *
106 * get the platform data associated with the given device, or return
107 * the default if there is none
108*/
109
110static inline struct s3c2410_platform_i2c *
111s3c24xx_i2c_get_platformdata(struct device *dev)
112{
113 if (dev->platform_data != NULL)
114 return (struct s3c2410_platform_i2c *)dev->platform_data;
115
116 return &s3c24xx_i2c_default_platform;
117}
118
119/* s3c24xx_i2c_master_complete 94/* s3c24xx_i2c_master_complete
120 * 95 *
121 * complete the message and wake up the caller, using the given return code, 96 * complete the message and wake up the caller, using the given return code,
@@ -648,7 +623,7 @@ static inline int freq_acceptable(unsigned int freq, unsigned int wanted)
648 623
649static int s3c24xx_i2c_clockrate(struct s3c24xx_i2c *i2c, unsigned int *got) 624static int s3c24xx_i2c_clockrate(struct s3c24xx_i2c *i2c, unsigned int *got)
650{ 625{
651 struct s3c2410_platform_i2c *pdata; 626 struct s3c2410_platform_i2c *pdata = i2c->dev->platform_data;
652 unsigned long clkin = clk_get_rate(i2c->clk); 627 unsigned long clkin = clk_get_rate(i2c->clk);
653 unsigned int divs, div1; 628 unsigned int divs, div1;
654 u32 iiccon; 629 u32 iiccon;
@@ -656,8 +631,6 @@ static int s3c24xx_i2c_clockrate(struct s3c24xx_i2c *i2c, unsigned int *got)
656 int start, end; 631 int start, end;
657 632
658 i2c->clkrate = clkin; 633 i2c->clkrate = clkin;
659
660 pdata = s3c24xx_i2c_get_platformdata(i2c->adap.dev.parent);
661 clkin /= 1000; /* clkin now in KHz */ 634 clkin /= 1000; /* clkin now in KHz */
662 635
663 dev_dbg(i2c->dev, "pdata %p, freq %lu %lu..%lu\n", 636 dev_dbg(i2c->dev, "pdata %p, freq %lu %lu..%lu\n",
@@ -778,7 +751,7 @@ static int s3c24xx_i2c_init(struct s3c24xx_i2c *i2c)
778 751
779 /* get the plafrom data */ 752 /* get the plafrom data */
780 753
781 pdata = s3c24xx_i2c_get_platformdata(i2c->dev); 754 pdata = i2c->dev->platform_data;
782 755
783 /* inititalise the gpio */ 756 /* inititalise the gpio */
784 757
@@ -829,7 +802,11 @@ static int s3c24xx_i2c_probe(struct platform_device *pdev)
829 struct resource *res; 802 struct resource *res;
830 int ret; 803 int ret;
831 804
832 pdata = s3c24xx_i2c_get_platformdata(&pdev->dev); 805 pdata = pdev->dev.platform_data;
806 if (!pdata) {
807 dev_err(&pdev->dev, "no platform data\n");
808 return -EINVAL;
809 }
833 810
834 /* find the clock and enable it */ 811 /* find the clock and enable it */
835 812