diff options
Diffstat (limited to 'drivers/gpu/drm/i915/display/intel_hdcp.c')
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_hdcp.c | 33 |
1 files changed, 14 insertions, 19 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_hdcp.c b/drivers/gpu/drm/i915/display/intel_hdcp.c index 42202c8bb066..531ee122bf82 100644 --- a/drivers/gpu/drm/i915/display/intel_hdcp.c +++ b/drivers/gpu/drm/i915/display/intel_hdcp.c @@ -11,6 +11,7 @@ #include <linux/component.h> #include <linux/debugfs.h> #include <linux/i2c.h> +#include <linux/iopoll.h> #include <linux/random.h> #include <drm/display/drm_hdcp_helper.h> @@ -326,16 +327,13 @@ static int intel_hdcp_poll_ksv_fifo(struct intel_digital_port *dig_port, bool ksv_ready; /* Poll for ksv list ready (spec says max time allowed is 5s) */ - ret = __wait_for(read_ret = shim->read_ksv_ready(dig_port, - &ksv_ready), - read_ret || ksv_ready, 5 * 1000 * 1000, 1000, - 100 * 1000); + ret = poll_timeout_us(read_ret = shim->read_ksv_ready(dig_port, &ksv_ready), + read_ret || ksv_ready, + 100 * 1000, 5 * 1000 * 1000, false); if (ret) return ret; if (read_ret) return read_ret; - if (!ksv_ready) - return -ETIMEDOUT; return 0; } @@ -817,6 +815,7 @@ static int intel_hdcp_auth(struct intel_connector *connector) enum port port = dig_port->base.port; unsigned long r0_prime_gen_start; int ret, i, tries = 2; + u32 val; union { u32 reg[2]; u8 shim[DRM_HDCP_AN_LEN]; @@ -905,8 +904,10 @@ static int intel_hdcp_auth(struct intel_connector *connector) HDCP_CONF_AUTH_AND_ENC); /* Wait for R0 ready */ - if (wait_for(intel_de_read(display, HDCP_STATUS(display, cpu_transcoder, port)) & - (HDCP_STATUS_R0_READY | HDCP_STATUS_ENC), 1)) { + ret = poll_timeout_us(val = intel_de_read(display, HDCP_STATUS(display, cpu_transcoder, port)), + val & (HDCP_STATUS_R0_READY | HDCP_STATUS_ENC), + 100, 1000, false); + if (ret) { drm_err(display->drm, "Timed out waiting for R0 ready\n"); return -ETIMEDOUT; } @@ -938,16 +939,16 @@ static int intel_hdcp_auth(struct intel_connector *connector) ri.reg); /* Wait for Ri prime match */ - if (!wait_for(intel_de_read(display, HDCP_STATUS(display, cpu_transcoder, port)) & - (HDCP_STATUS_RI_MATCH | HDCP_STATUS_ENC), 1)) + ret = poll_timeout_us(val = intel_de_read(display, HDCP_STATUS(display, cpu_transcoder, port)), + val & (HDCP_STATUS_RI_MATCH | HDCP_STATUS_ENC), + 100, 1000, false); + if (!ret) break; } if (i == tries) { drm_dbg_kms(display->drm, - "Timed out waiting for Ri prime match (%x)\n", - intel_de_read(display, - HDCP_STATUS(display, cpu_transcoder, port))); + "Timed out waiting for Ri prime match (%x)\n", val); return -ETIMEDOUT; } @@ -2446,12 +2447,6 @@ static int _intel_hdcp_enable(struct intel_atomic_state *state, if (!hdcp->shim) return -ENOENT; - if (!connector->encoder) { - drm_err(display->drm, "[CONNECTOR:%d:%s] encoder is not initialized\n", - connector->base.base.id, connector->base.name); - return -ENODEV; - } - mutex_lock(&hdcp->mutex); mutex_lock(&dig_port->hdcp.mutex); drm_WARN_ON(display->drm, |