drm/amdgpu/display: use msleep rather than udelay for HDCP (5f773e55) · Commits · 戴 / test

ARM has a 2000us limit for udelay. Switch to msleep. This code executes in a worker thread so shouldn't be an atomic context. Signed-off-by:

drivers/gpu/drm/amd/display/modules/hdcp/hdcp2_execution.c

+3 −3

Original line number	Diff line number	Diff line
		@@ -153,7 +153,7 @@ static enum mod_hdcp_status poll_l_prime_available(struct mod_hdcp *hdcp)
		{
		enum mod_hdcp_status status;
		uint8_t size;
		uint16_t max_wait = 20000; // units of us
		uint16_t max_wait = 20; // units of ms
		uint16_t num_polls = 5;
		uint16_t wait_time = max_wait / num_polls;

		@@ -161,7 +161,7 @@ static enum mod_hdcp_status poll_l_prime_available(struct mod_hdcp *hdcp)
		status = MOD_HDCP_STATUS_INVALID_OPERATION;
		else
		for (; num_polls; num_polls--) {
		udelay(wait_time);
		msleep(wait_time);

		status = mod_hdcp_read_rxstatus(hdcp);
		if (status != MOD_HDCP_STATUS_SUCCESS)
		@@ -474,7 +474,7 @@ static enum mod_hdcp_status locality_check(struct mod_hdcp *hdcp,
		hdcp, "lc_init_write"))
		goto out;
		if (is_dp_hdcp(hdcp))
		udelay(16000);
		msleep(16);
		else
		if (!mod_hdcp_execute_and_set(poll_l_prime_available,
		&input->l_prime_available_poll, &status,