74 struct ssbi {  struct
79 	int (*read)(struct ssbi *, u16 addr, u8 *buf, int len);  argument
80 	int (*write)(struct ssbi *, u16 addr, const u8 *buf, int len);  argument
85 static inline u32 ssbi_readl(struct ssbi *ssbi, u32 reg)  in ssbi_readl()  argument
87 	return readl(ssbi->base + reg);  in ssbi_readl()
90 static inline void ssbi_writel(struct ssbi *ssbi, u32 val, u32 reg)  in ssbi_writel()  argument
92 	writel(val, ssbi->base + reg);  in ssbi_writel()
104 static int ssbi_wait_mask(struct ssbi *ssbi, u32 set_mask, u32 clr_mask)  in ssbi_wait_mask()  argument
110 		val = ssbi_readl(ssbi, SSBI2_STATUS);  in ssbi_wait_mask()
120 ssbi_read_bytes(struct ssbi *ssbi, u16 addr, u8 *buf, int len)  in ssbi_read_bytes()  argument
125 	if (ssbi->controller_type == MSM_SBI_CTRL_SSBI2) {  in ssbi_read_bytes()
126 		u32 mode2 = ssbi_readl(ssbi, SSBI2_MODE2);  in ssbi_read_bytes()
128 		ssbi_writel(ssbi, mode2, SSBI2_MODE2);  in ssbi_read_bytes()
132 		ret = ssbi_wait_mask(ssbi, SSBI_STATUS_READY, 0);  in ssbi_read_bytes()
136 		ssbi_writel(ssbi, cmd, SSBI2_CMD);  in ssbi_read_bytes()
137 		ret = ssbi_wait_mask(ssbi, SSBI_STATUS_RD_READY, 0);  in ssbi_read_bytes()
140 		*buf++ = ssbi_readl(ssbi, SSBI2_RD) & 0xff;  in ssbi_read_bytes()
149 ssbi_write_bytes(struct ssbi *ssbi, u16 addr, const u8 *buf, int len)  in ssbi_write_bytes()  argument
153 	if (ssbi->controller_type == MSM_SBI_CTRL_SSBI2) {  in ssbi_write_bytes()
154 		u32 mode2 = ssbi_readl(ssbi, SSBI2_MODE2);  in ssbi_write_bytes()
156 		ssbi_writel(ssbi, mode2, SSBI2_MODE2);  in ssbi_write_bytes()
160 		ret = ssbi_wait_mask(ssbi, SSBI_STATUS_READY, 0);  in ssbi_write_bytes()
164 		ssbi_writel(ssbi, ((addr & 0xff) << 16) | *buf, SSBI2_CMD);  in ssbi_write_bytes()
165 		ret = ssbi_wait_mask(ssbi, 0, SSBI_STATUS_MCHN_BUSY);  in ssbi_write_bytes()
181 ssbi_pa_transfer(struct ssbi *ssbi, u32 cmd, u8 *data)  in ssbi_pa_transfer()  argument
186 	ssbi_writel(ssbi, cmd, SSBI_PA_CMD);  in ssbi_pa_transfer()
189 		rd_status = ssbi_readl(ssbi, SSBI_PA_RD_STATUS);  in ssbi_pa_transfer()
206 ssbi_pa_read_bytes(struct ssbi *ssbi, u16 addr, u8 *buf, int len)  in ssbi_pa_read_bytes()  argument
214 		ret = ssbi_pa_transfer(ssbi, cmd, buf);  in ssbi_pa_read_bytes()
226 ssbi_pa_write_bytes(struct ssbi *ssbi, u16 addr, const u8 *buf, int len)  in ssbi_pa_write_bytes()  argument
233 		ret = ssbi_pa_transfer(ssbi, cmd, NULL);  in ssbi_pa_write_bytes()
246 	struct ssbi *ssbi = to_ssbi(dev);  in ssbi_read()  local
250 	spin_lock_irqsave(&ssbi->lock, flags);  in ssbi_read()
251 	ret = ssbi->read(ssbi, addr, buf, len);  in ssbi_read()
252 	spin_unlock_irqrestore(&ssbi->lock, flags);  in ssbi_read()
260 	struct ssbi *ssbi = to_ssbi(dev);  in ssbi_write()  local
264 	spin_lock_irqsave(&ssbi->lock, flags);  in ssbi_write()
265 	ret = ssbi->write(ssbi, addr, buf, len);  in ssbi_write()
266 	spin_unlock_irqrestore(&ssbi->lock, flags);  in ssbi_write()
276 	struct ssbi *ssbi;  in ssbi_probe()  local
279 	ssbi = devm_kzalloc(&pdev->dev, sizeof(*ssbi), GFP_KERNEL);  in ssbi_probe()
280 	if (!ssbi)  in ssbi_probe()
284 	ssbi->base = devm_ioremap_resource(&pdev->dev, mem_res);  in ssbi_probe()
285 	if (IS_ERR(ssbi->base))  in ssbi_probe()
286 		return PTR_ERR(ssbi->base);  in ssbi_probe()
288 	platform_set_drvdata(pdev, ssbi);  in ssbi_probe()
297 		ssbi->controller_type = MSM_SBI_CTRL_SSBI;  in ssbi_probe()
299 		ssbi->controller_type = MSM_SBI_CTRL_SSBI2;  in ssbi_probe()
301 		ssbi->controller_type = MSM_SBI_CTRL_PMIC_ARBITER;  in ssbi_probe()
307 	if (ssbi->controller_type == MSM_SBI_CTRL_PMIC_ARBITER) {  in ssbi_probe()
308 		ssbi->read = ssbi_pa_read_bytes;  in ssbi_probe()
309 		ssbi->write = ssbi_pa_write_bytes;  in ssbi_probe()
311 		ssbi->read = ssbi_read_bytes;  in ssbi_probe()
312 		ssbi->write = ssbi_write_bytes;  in ssbi_probe()
315 	spin_lock_init(&ssbi->lock);  in ssbi_probe()