On 09/05/2014 16:31, Maxime Ripard wrote:
Hi Boris,
On Wed, May 07, 2014 at 07:58:35PM +0200, Boris BREZILLON wrote:
[...]
+
+ r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ p2wi-regs = devm_ioremap_resource(dev, r);
+ if (IS_ERR(p2wi-regs)) {
+
Hi,
On 05/09/2014 04:50 PM, Boris BREZILLON wrote:
On 09/05/2014 16:31, Maxime Ripard wrote:
Hi Boris,
On Wed, May 07, 2014 at 07:58:35PM +0200, Boris BREZILLON wrote:
[...]
+
+r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+p2wi-regs = devm_ioremap_resource(dev, r);
+
The P2WI looks like an SMBus controller which only supports byte data
transfers. But, it differs from standard SMBus protocol on several
aspects:
- it supports only one slave device, and thus drop the address field
- it adds a parity bit every 8bits of data
- only one read access is required to
