Hi Jagan,
sob., 28 gru 2019 o 03:27 Simon Glass sjg@chromium.org napisał(a):
On Thu, 21 Nov 2019 at 04:45, Marcin Wojtas mw@semihalf.com wrote:
The SPI stack relies on a proper bus speed/mode configuration by calling dm_spi_claim_bus(). However the hitherto code allowed to accidentally override those settings in the spi_get_bus_and_cs() routine.
The initially established speed could be discarded by using the slave platdata, which turned out to be an issue on the platforms whose slave maximum supported frequency is not on par with the maximum frequency of the bus controller.
This patch fixes above issue by configuring the bus from spi_get_bus_and_cs() only in case it was not done before.
Signed-off-by: Marcin Wojtas mw@semihalf.com
drivers/spi/spi-uclass.c | 20 +++++++++++--------- 1 file changed, 11 insertions(+), 9 deletions(-)
Reviewed-by: Simon Glass sjg@chromium.org
Is there a chance to merge the patch, or do you have any objections?
Best regards, Marcin