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path: root/drivers/mfd/tc6387xb.c
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Diffstat (limited to 'drivers/mfd/tc6387xb.c')
-rw-r--r--drivers/mfd/tc6387xb.c119
1 files changed, 88 insertions, 31 deletions
diff --git a/drivers/mfd/tc6387xb.c b/drivers/mfd/tc6387xb.c
index 3280ab33f88a..5c7f04343d5c 100644
--- a/drivers/mfd/tc6387xb.c
+++ b/drivers/mfd/tc6387xb.c
@@ -22,28 +22,52 @@ enum {
22 TC6387XB_CELL_MMC, 22 TC6387XB_CELL_MMC,
23}; 23};
24 24
25struct tc6387xb {
26 void __iomem *scr;
27 struct clk *clk32k;
28 struct resource rscr;
29};
30
31static struct resource tc6387xb_mmc_resources[] = {
32 {
33 .start = 0x800,
34 .end = 0x9ff,
35 .flags = IORESOURCE_MEM,
36 },
37 {
38 .start = 0,
39 .end = 0,
40 .flags = IORESOURCE_IRQ,
41 },
42};
43
44/*--------------------------------------------------------------------------*/
45
25#ifdef CONFIG_PM 46#ifdef CONFIG_PM
26static int tc6387xb_suspend(struct platform_device *dev, pm_message_t state) 47static int tc6387xb_suspend(struct platform_device *dev, pm_message_t state)
27{ 48{
28 struct clk *clk32k = platform_get_drvdata(dev); 49 struct tc6387xb *tc6387xb = platform_get_drvdata(dev);
29 struct tc6387xb_platform_data *pdata = dev->dev.platform_data; 50 struct tc6387xb_platform_data *pdata = dev->dev.platform_data;
30 51
31 if (pdata && pdata->suspend) 52 if (pdata && pdata->suspend)
32 pdata->suspend(dev); 53 pdata->suspend(dev);
33 clk_disable(clk32k); 54 clk_disable(tc6387xb->clk32k);
34 55
35 return 0; 56 return 0;
36} 57}
37 58
38static int tc6387xb_resume(struct platform_device *dev) 59static int tc6387xb_resume(struct platform_device *dev)
39{ 60{
40 struct clk *clk32k = platform_get_drvdata(dev); 61 struct tc6387xb *tc6387xb = platform_get_drvdata(dev);
41 struct tc6387xb_platform_data *pdata = dev->dev.platform_data; 62 struct tc6387xb_platform_data *pdata = dev->dev.platform_data;
42 63
43 clk_enable(clk32k); 64 clk_enable(tc6387xb->clk32k);
44 if (pdata && pdata->resume) 65 if (pdata && pdata->resume)
45 pdata->resume(dev); 66 pdata->resume(dev);
46 67
68 tmio_core_mmc_resume(tc6387xb->scr + 0x200, 0,
69 tc6387xb_mmc_resources[0].start & 0xfffe);
70
47 return 0; 71 return 0;
48} 72}
49#else 73#else
@@ -53,12 +77,32 @@ static int tc6387xb_resume(struct platform_device *dev)
53 77
54/*--------------------------------------------------------------------------*/ 78/*--------------------------------------------------------------------------*/
55 79
80static void tc6387xb_mmc_pwr(struct platform_device *mmc, int state)
81{
82 struct platform_device *dev = to_platform_device(mmc->dev.parent);
83 struct tc6387xb *tc6387xb = platform_get_drvdata(dev);
84
85 tmio_core_mmc_pwr(tc6387xb->scr + 0x200, 0, state);
86}
87
88static void tc6387xb_mmc_clk_div(struct platform_device *mmc, int state)
89{
90 struct platform_device *dev = to_platform_device(mmc->dev.parent);
91 struct tc6387xb *tc6387xb = platform_get_drvdata(dev);
92
93 tmio_core_mmc_clk_div(tc6387xb->scr + 0x200, 0, state);
94}
95
96
56static int tc6387xb_mmc_enable(struct platform_device *mmc) 97static int tc6387xb_mmc_enable(struct platform_device *mmc)
57{ 98{
58 struct platform_device *dev = to_platform_device(mmc->dev.parent); 99 struct platform_device *dev = to_platform_device(mmc->dev.parent);
59 struct clk *clk32k = platform_get_drvdata(dev); 100 struct tc6387xb *tc6387xb = platform_get_drvdata(dev);
60 101
61 clk_enable(clk32k); 102 clk_enable(tc6387xb->clk32k);
103
104 tmio_core_mmc_enable(tc6387xb->scr + 0x200, 0,
105 tc6387xb_mmc_resources[0].start & 0xfffe);
62 106
63 return 0; 107 return 0;
64} 108}
@@ -66,36 +110,20 @@ static int tc6387xb_mmc_enable(struct platform_device *mmc)
66static int tc6387xb_mmc_disable(struct platform_device *mmc) 110static int tc6387xb_mmc_disable(struct platform_device *mmc)
67{ 111{
68 struct platform_device *dev = to_platform_device(mmc->dev.parent); 112 struct platform_device *dev = to_platform_device(mmc->dev.parent);
69 struct clk *clk32k = platform_get_drvdata(dev); 113 struct tc6387xb *tc6387xb = platform_get_drvdata(dev);
70 114
71 clk_disable(clk32k); 115 clk_disable(tc6387xb->clk32k);
72 116
73 return 0; 117 return 0;
74} 118}
75 119
76/*--------------------------------------------------------------------------*/
77
78static struct tmio_mmc_data tc6387xb_mmc_data = { 120static struct tmio_mmc_data tc6387xb_mmc_data = {
79 .hclk = 24000000, 121 .hclk = 24000000,
122 .set_pwr = tc6387xb_mmc_pwr,
123 .set_clk_div = tc6387xb_mmc_clk_div,
80}; 124};
81 125
82static struct resource tc6387xb_mmc_resources[] = { 126/*--------------------------------------------------------------------------*/
83 {
84 .start = 0x800,
85 .end = 0x9ff,
86 .flags = IORESOURCE_MEM,
87 },
88 {
89 .start = 0x200,
90 .end = 0x2ff,
91 .flags = IORESOURCE_MEM,
92 },
93 {
94 .start = 0,
95 .end = 0,
96 .flags = IORESOURCE_IRQ,
97 },
98};
99 127
100static struct mfd_cell tc6387xb_cells[] = { 128static struct mfd_cell tc6387xb_cells[] = {
101 [TC6387XB_CELL_MMC] = { 129 [TC6387XB_CELL_MMC] = {
@@ -111,8 +139,9 @@ static struct mfd_cell tc6387xb_cells[] = {
111static int tc6387xb_probe(struct platform_device *dev) 139static int tc6387xb_probe(struct platform_device *dev)
112{ 140{
113 struct tc6387xb_platform_data *pdata = dev->dev.platform_data; 141 struct tc6387xb_platform_data *pdata = dev->dev.platform_data;
114 struct resource *iomem; 142 struct resource *iomem, *rscr;
115 struct clk *clk32k; 143 struct clk *clk32k;
144 struct tc6387xb *tc6387xb;
116 int irq, ret; 145 int irq, ret;
117 146
118 iomem = platform_get_resource(dev, IORESOURCE_MEM, 0); 147 iomem = platform_get_resource(dev, IORESOURCE_MEM, 0);
@@ -120,18 +149,40 @@ static int tc6387xb_probe(struct platform_device *dev)
120 return -EINVAL; 149 return -EINVAL;
121 } 150 }
122 151
152 tc6387xb = kzalloc(sizeof *tc6387xb, GFP_KERNEL);
153 if (!tc6387xb)
154 return -ENOMEM;
155
123 ret = platform_get_irq(dev, 0); 156 ret = platform_get_irq(dev, 0);
124 if (ret >= 0) 157 if (ret >= 0)
125 irq = ret; 158 irq = ret;
126 else 159 else
127 goto err_resource; 160 goto err_no_irq;
128 161
129 clk32k = clk_get(&dev->dev, "CLK_CK32K"); 162 clk32k = clk_get(&dev->dev, "CLK_CK32K");
130 if (IS_ERR(clk32k)) { 163 if (IS_ERR(clk32k)) {
131 ret = PTR_ERR(clk32k); 164 ret = PTR_ERR(clk32k);
165 goto err_no_clk;
166 }
167
168 rscr = &tc6387xb->rscr;
169 rscr->name = "tc6387xb-core";
170 rscr->start = iomem->start;
171 rscr->end = iomem->start + 0xff;
172 rscr->flags = IORESOURCE_MEM;
173
174 ret = request_resource(iomem, rscr);
175 if (ret)
132 goto err_resource; 176 goto err_resource;
177
178 tc6387xb->scr = ioremap(rscr->start, rscr->end - rscr->start + 1);
179 if (!tc6387xb->scr) {
180 ret = -ENOMEM;
181 goto err_ioremap;
133 } 182 }
134 platform_set_drvdata(dev, clk32k); 183
184 tc6387xb->clk32k = clk32k;
185 platform_set_drvdata(dev, tc6387xb);
135 186
136 if (pdata && pdata->enable) 187 if (pdata && pdata->enable)
137 pdata->enable(dev); 188 pdata->enable(dev);
@@ -149,8 +200,13 @@ static int tc6387xb_probe(struct platform_device *dev)
149 if (!ret) 200 if (!ret)
150 return 0; 201 return 0;
151 202
152 clk_put(clk32k); 203err_ioremap:
204 release_resource(&tc6387xb->rscr);
153err_resource: 205err_resource:
206 clk_put(clk32k);
207err_no_clk:
208err_no_irq:
209 kfree(tc6387xb);
154 return ret; 210 return ret;
155} 211}
156 212
@@ -195,3 +251,4 @@ MODULE_DESCRIPTION("Toshiba TC6387XB core driver");
195MODULE_LICENSE("GPL v2"); 251MODULE_LICENSE("GPL v2");
196MODULE_AUTHOR("Ian Molton"); 252MODULE_AUTHOR("Ian Molton");
197MODULE_ALIAS("platform:tc6387xb"); 253MODULE_ALIAS("platform:tc6387xb");
254