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mmc: host: sdhci-msm-ice: Support for clearing ice configuration

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Adding support for clearing ice configuration.
Once mmc request processing is completed, mmc driver has to
call config_end to ensure key information is cleared by ICE
driver. This call is optional for FDE but required for FBE.

Change-Id: I8c225deda782528a7f220f7d1f81c6240caca1ae
Signed-off-by: Veerabhadrarao Badiganti <vbadigan@codeaurora.org>
This commit is contained in:
Veerabhadrarao Badiganti 2017-03-08 06:51:49 +05:30
parent a7291efc55
commit f2d322f387
3 changed files with 38 additions and 0 deletions
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31
drivers/mmc/host/sdhci-msm-ice.c
View file

@ -414,6 +414,37 @@ int sdhci_msm_ice_cmdq_cfg(struct sdhci_host *host,
return 0;
}
int sdhci_msm_ice_cfg_end(struct sdhci_host *host, struct mmc_request *mrq)
{
struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
struct sdhci_msm_host *msm_host = pltfm_host->priv;
int err = 0;
struct request *req;
if (!host->is_crypto_en)
return 0;
if (msm_host->ice.state != SDHCI_MSM_ICE_STATE_ACTIVE) {
pr_err("%s: ice is in invalid state %d\n",
mmc_hostname(host->mmc), msm_host->ice.state);
return -EINVAL;
}
req = mrq->req;
if (req) {
if (msm_host->ice.vops->config_end) {
err = msm_host->ice.vops->config_end(req);
if (err) {
pr_err("%s: ice config end failed %d\n",
mmc_hostname(host->mmc), err);
return err;
}
}
}
return 0;
}
int sdhci_msm_ice_reset(struct sdhci_host *host)
{
struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);

6
drivers/mmc/host/sdhci-msm-ice.h
View file

@ -107,6 +107,7 @@ int sdhci_msm_ice_cfg(struct sdhci_host *host, struct mmc_request *mrq,
u32 slot);
int sdhci_msm_ice_cmdq_cfg(struct sdhci_host *host,
struct mmc_request *mrq, u32 slot, u64 *ice_ctx);
int sdhci_msm_ice_cfg_end(struct sdhci_host *host, struct mmc_request *mrq);
int sdhci_msm_ice_reset(struct sdhci_host *host);
int sdhci_msm_ice_resume(struct sdhci_host *host);
int sdhci_msm_ice_suspend(struct sdhci_host *host);
@ -143,6 +144,11 @@ inline int sdhci_msm_ice_cmdq_cfg(struct sdhci_host *host,
{
return 0;
}
inline int sdhci_msm_ice_cfg_end(struct sdhci_host *host,
struct mmc_request *mrq)
{
return 0;
}
inline int sdhci_msm_ice_reset(struct sdhci_host *host)
{
return 0;

1
drivers/mmc/host/sdhci-msm.c
View file

@ -4008,6 +4008,7 @@ static unsigned int sdhci_msm_get_current_limit(struct sdhci_host *host)
static struct sdhci_ops sdhci_msm_ops = {
.crypto_engine_cfg = sdhci_msm_ice_cfg,
.crypto_engine_cmdq_cfg = sdhci_msm_ice_cmdq_cfg,
.crypto_engine_cfg_end = sdhci_msm_ice_cfg_end,
.crypto_cfg_reset = sdhci_msm_ice_cfg_reset,
.crypto_engine_reset = sdhci_msm_ice_reset,
.set_uhs_signaling = sdhci_msm_set_uhs_signaling,