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/Linux-v5.10/drivers/gpu/drm/imx/dcss/
Ddcss-scaler.c110 static int mult_q(int A, int B) in mult_q() function
151 term = mult_q(term, div_q(x, 1 << PSC_Q_FRACTION)); in exp_approx_q()
153 term = mult_q(term, div_q(x, 2 << PSC_Q_FRACTION)); in exp_approx_q()
155 term = mult_q(term, div_q(x, 3 << PSC_Q_FRACTION)); in exp_approx_q()
157 term = mult_q(term, div_q(x, 4 << PSC_Q_FRACTION)); in exp_approx_q()
197 mult_q(sigma_q, sigma_q))); in dcss_scaler_gaussian_filter()
198 g2_q = mult_q(g1_q, g1_q); in dcss_scaler_gaussian_filter()
206 g0_q = mult_q(g0_q, g1_q); in dcss_scaler_gaussian_filter()
207 g1_q = mult_q(g1_q, g2_q); in dcss_scaler_gaussian_filter()