* [PATCH] Char: tpm_tis_spi_cr50: use new structure for SPI transfer delays
@ 2020-02-26 11:43 Sergiu Cuciurean
2020-02-26 15:12 ` Jarkko Sakkinen
2020-02-27 8:03 ` [PATCH v2] tpm: " Sergiu Cuciurean
0 siblings, 2 replies; 4+ messages in thread
From: Sergiu Cuciurean @ 2020-02-26 11:43 UTC (permalink / raw)
To: gregkh, linux-integrity, linux-kernel
Cc: peterhuewe, jarkko.sakkinen, jgg, arnd, Sergiu Cuciurean
In a recent change to the SPI subsystem [1], a new `delay` struct was added
to replace the `delay_usecs`. This change replaces the current
`delay_usecs` with `delay` for this driver.
The `spi_transfer_delay_exec()` function [in the SPI framework] makes sure
that both `delay_usecs` & `delay` are used (in this order to preserve
backwards compatibility).
[1] commit bebcfd272df6 ("spi: introduce `delay` field for
`spi_transfer` + spi_transfer_delay_exec()")
Signed-off-by: Sergiu Cuciurean <sergiu.cuciurean@analog.com>
---
drivers/char/tpm/tpm_tis_spi_cr50.c | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/drivers/char/tpm/tpm_tis_spi_cr50.c b/drivers/char/tpm/tpm_tis_spi_cr50.c
index 37d72e818335..ea759af25634 100644
--- a/drivers/char/tpm/tpm_tis_spi_cr50.c
+++ b/drivers/char/tpm/tpm_tis_spi_cr50.c
@@ -132,7 +132,12 @@ static void cr50_wake_if_needed(struct cr50_spi_phy *cr50_phy)
if (cr50_needs_waking(cr50_phy)) {
/* Assert CS, wait 1 msec, deassert CS */
- struct spi_transfer spi_cs_wake = { .delay_usecs = 1000 };
+ struct spi_transfer spi_cs_wake = {
+ .delay = {
+ .value = 1000,
+ .unit = SPI_DELAY_UNIT_USECS
+ }
+ };
spi_sync_transfer(phy->spi_device, &spi_cs_wake, 1);
/* Wait for it to fully wake */
--
2.17.1
^ permalink raw reply related [flat|nested] 4+ messages in thread
* Re: [PATCH] Char: tpm_tis_spi_cr50: use new structure for SPI transfer delays
2020-02-26 11:43 [PATCH] Char: tpm_tis_spi_cr50: use new structure for SPI transfer delays Sergiu Cuciurean
@ 2020-02-26 15:12 ` Jarkko Sakkinen
2020-02-27 8:03 ` [PATCH v2] tpm: " Sergiu Cuciurean
1 sibling, 0 replies; 4+ messages in thread
From: Jarkko Sakkinen @ 2020-02-26 15:12 UTC (permalink / raw)
To: Sergiu Cuciurean
Cc: gregkh, linux-integrity, linux-kernel, peterhuewe, jgg, arnd
On Wed, Feb 26, 2020 at 01:43:47PM +0200, Sergiu Cuciurean wrote:
> In a recent change to the SPI subsystem [1], a new `delay` struct was added
> to replace the `delay_usecs`. This change replaces the current
> `delay_usecs` with `delay` for this driver.
>
> The `spi_transfer_delay_exec()` function [in the SPI framework] makes sure
> that both `delay_usecs` & `delay` are used (in this order to preserve
> backwards compatibility).
>
> [1] commit bebcfd272df6 ("spi: introduce `delay` field for
> `spi_transfer` + spi_transfer_delay_exec()")
>
> Signed-off-by: Sergiu Cuciurean <sergiu.cuciurean@analog.com>
In the short summary used "tpm:" instead of "Char:".
/Jarkko
^ permalink raw reply [flat|nested] 4+ messages in thread
* [PATCH v2] tpm: tpm_tis_spi_cr50: use new structure for SPI transfer delays
2020-02-26 11:43 [PATCH] Char: tpm_tis_spi_cr50: use new structure for SPI transfer delays Sergiu Cuciurean
2020-02-26 15:12 ` Jarkko Sakkinen
@ 2020-02-27 8:03 ` Sergiu Cuciurean
2020-02-27 16:22 ` Jarkko Sakkinen
1 sibling, 1 reply; 4+ messages in thread
From: Sergiu Cuciurean @ 2020-02-27 8:03 UTC (permalink / raw)
To: gregkh, linux-integrity, linux-kernel
Cc: peterhuewe, jarkko.sakkinen, jgg, arnd, Sergiu Cuciurean
In a recent change to the SPI subsystem [1], a new `delay` struct was added
to replace the `delay_usecs`. This change replaces the current
`delay_usecs` with `delay` for this driver.
The `spi_transfer_delay_exec()` function [in the SPI framework] makes sure
that both `delay_usecs` & `delay` are used (in this order to preserve
backwards compatibility).
[1] commit bebcfd272df6 ("spi: introduce `delay` field for
`spi_transfer` + spi_transfer_delay_exec()")
Signed-off-by: Sergiu Cuciurean <sergiu.cuciurean@analog.com>
---
Changelog v1->v2:
*Change to proper subsystem prefix
drivers/char/tpm/tpm_tis_spi_cr50.c | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/drivers/char/tpm/tpm_tis_spi_cr50.c b/drivers/char/tpm/tpm_tis_spi_cr50.c
index 37d72e818335..ea759af25634 100644
--- a/drivers/char/tpm/tpm_tis_spi_cr50.c
+++ b/drivers/char/tpm/tpm_tis_spi_cr50.c
@@ -132,7 +132,12 @@ static void cr50_wake_if_needed(struct cr50_spi_phy *cr50_phy)
if (cr50_needs_waking(cr50_phy)) {
/* Assert CS, wait 1 msec, deassert CS */
- struct spi_transfer spi_cs_wake = { .delay_usecs = 1000 };
+ struct spi_transfer spi_cs_wake = {
+ .delay = {
+ .value = 1000,
+ .unit = SPI_DELAY_UNIT_USECS
+ }
+ };
spi_sync_transfer(phy->spi_device, &spi_cs_wake, 1);
/* Wait for it to fully wake */
--
2.17.1
^ permalink raw reply related [flat|nested] 4+ messages in thread
* Re: [PATCH v2] tpm: tpm_tis_spi_cr50: use new structure for SPI transfer delays
2020-02-27 8:03 ` [PATCH v2] tpm: " Sergiu Cuciurean
@ 2020-02-27 16:22 ` Jarkko Sakkinen
0 siblings, 0 replies; 4+ messages in thread
From: Jarkko Sakkinen @ 2020-02-27 16:22 UTC (permalink / raw)
To: Sergiu Cuciurean
Cc: gregkh, linux-integrity, linux-kernel, peterhuewe, jgg, arnd
On Thu, Feb 27, 2020 at 10:03:39AM +0200, Sergiu Cuciurean wrote:
> In a recent change to the SPI subsystem [1], a new `delay` struct was added
> to replace the `delay_usecs`. This change replaces the current
> `delay_usecs` with `delay` for this driver.
>
> The `spi_transfer_delay_exec()` function [in the SPI framework] makes sure
> that both `delay_usecs` & `delay` are used (in this order to preserve
> backwards compatibility).
>
> [1] commit bebcfd272df6 ("spi: introduce `delay` field for
> `spi_transfer` + spi_transfer_delay_exec()")
>
> Signed-off-by: Sergiu Cuciurean <sergiu.cuciurean@analog.com>
Reviewed-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
/Jarkko
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2020-02-27 16:23 UTC | newest]
Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
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2020-02-26 11:43 [PATCH] Char: tpm_tis_spi_cr50: use new structure for SPI transfer delays Sergiu Cuciurean
2020-02-26 15:12 ` Jarkko Sakkinen
2020-02-27 8:03 ` [PATCH v2] tpm: " Sergiu Cuciurean
2020-02-27 16:22 ` Jarkko Sakkinen
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