lkml.org 
[lkml]   [2023]   [Mar]   [1]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [Patch V6 3/3] spi: tegra210-quad: Enable TPM wait polling
On Mon, Feb 27, 2023 at 10:51:08PM +0530, Krishna Yarlagadda wrote:
> Trusted Platform Module requires flow control. As defined in TPM
> interface specification, client would drive MISO line at same cycle as
> last address bit on MOSI.
> Tegra241 QSPI controller has TPM wait state detection feature which is
> enabled for TPM client devices reported in SPI device mode bits.
> Set half duplex flag for TPM device to detect and send entire message
> to controller in one shot.
>
> Signed-off-by: Krishna Yarlagadda <kyarlagadda@nvidia.com>
> ---
> drivers/spi/spi-tegra210-quad.c | 14 ++++++++++++++
> 1 file changed, 14 insertions(+)

Acked-by: Thierry Reding <treding@nvidia.com>
[unhandled content-type:application/pgp-signature]
\
 
 \ /
  Last update: 2023-03-27 00:39    [W:0.076 / U:0.712 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site