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Commit 9bf217c1 authored by Sivakanth Vaka's avatar Sivakanth Vaka Committed by Gerrit - the friendly Code Review server
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ipa3: Changes to keep IPA clock voted in shutdown notifier 



Adding changes to avoid unclocked access in shutdown notifier.
Increasing the IPA clock vote before saving the IPA registers.

Signed-off-by: default avatarSivakanth <vaka&lt;svaka@codeaurora.org>
parent 6179691f

drivers/platform/msm/ipa/ipa_v3/ipa.c

+14 −1
Original line number Diff line number Diff line
@@ -9098,9 +9098,22 @@ static void ipa_smmu_update_fw_loader(void) 


void ipa3_plat_drv_shutdown(struct platform_device *pdev_p)

{

	int res;

	struct ipa_active_client_logging_info log_info;



	pr_debug("ipa: driver shutdown invoked for %s\n",

		pdev_p->dev.of_node->name);

	if (ipa3_ctx && atomic_read(&ipa3_ctx->ipa_clk_vote)) {

	if(unlikely(!ipa3_ctx))

	{

		IPAERR("IPA driver not initialized\n");

		return;

	}

	/* Make sure IPA clock voted when collecting the reg dump */

	IPA_ACTIVE_CLIENTS_PREP_SPECIAL(log_info, "SHUTDOWN_VOTE");

	res = ipa3_inc_client_enable_clks_no_block(&log_info);

	if (res) {

		IPAERR("IPA clk off not saving the IPA registers\n");

	} else {

		ipahal_print_all_regs(false);

		ipa_save_registers();

	}