Hi Jeffrey,
On Tue, May 24, 2016 at 05:31:41PM +0800, jeffrey.lin wrote:
> Hi Dmitry:
> >
> > BUILD_BUG_ON((RM_FW_PAGE_SIZE % RM_BL_WRT_PKG_SIZE) != 0);
> >
> > for (i = 0; i < RM_FW_PAGE_SIZE / RM_BL_WRT_PKG_SIZE; i++) {
> > buf[BL_HEADER] = RM_CMD_BOOT_PAGE_WRT;
> > buf[BL_PAGE_STR] = i ? 0xff : 0;
> Change to buf[BL_PAGE_STR] = page_idx ? 0xff : 0;
> > buf[BL_PKG_IDX] = i;
> >
> > xfer_len = min_t(size_t, len, RM_BL_WRT_PKG_SIZE);
> > memcpy(&buf[BL_DATA_STR], data, xfer_len);
> > if (len < RM_BL_WRT_PKG_SIZE)
> > memset(&buf[BL_DATA_STR + xfer_len], 0xff,
> > RM_BL_WRT_PKG_SIZE - xfer_len);
> >
> > error = raydium_i2c_write_object(client, buf, RM_BL_WRT_LEN,
> > RAYDIUM_WAIT_READY);
> > if (error) {
> > dev_err(&client->dev,
> > "page write command failed for page %d, chunk %d: %d\n",
> > page_idx, pkg_idx, error);
> > return error;
> > }
> >
> > data += xfer_len;
> > len -= xfer_len;
> > }
> This work on my hand chromebook.
>
> > static int raydium_i2c_read_message(struct i2c_client *client,
> > u32 addr, void *data, size_t len)
> > {
> > __le32 le_addr;
> > size_t xfer_len;
> > int error;
> >
> > while (len) {
> > xfer_len = min_t(size_t, len, RM_MAX_READ_SIZE);
> >
> > le_addr = cpu_to_le32(addr);
> >
> > error = raydium_i2c_send(client, RM_CMD_BANK_SWITCH,
> > &le_addr, sizeof(le_addr));
> > if (!error)/*read from last byte addr.*/
> > error = raydium_i2c_read(client, le_addr & 0xff,
> > data, xfer_len)
> Change as
> error = raydium_i2c_read(client, addr & 0xff,
> data, xfer_len);
>
> I've fixed this issues and submit new patch to upstream. Please help check that.
I do not think that we want the gratuitous change from BE to LE here, as
this will give users trouble with devices that still use older
bootloader firmwares.
I did change this back to BE, along with a couple of other tweaks, and
uploaded what I hope is the final version of the patch to "raydium"
branch of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input.git
Please give it a try on your side and if everything works I will queue
the driver to be merged in the next merge window.
Thanks!
--
Dmitry
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