1 // SPDX-License-Identifier: GPL-2.0-only
23 	struct device *dev = &sc->pdev->dev;  in sc_dump_regs()
25 #define DUMPREG(r) dev_dbg(dev, "%-35s %08x\n", #r, \  in sc_dump_regs()
26 	ioread32(sc->base + CFG_##r))  in sc_dump_regs()
28 	dev_dbg(dev, "SC Registers @ %pa:\n", &sc->res->start);  in sc_dump_regs()
58  * set the horizontal scaler coefficients according to the ratio of output to
59  * input widths, after accounting for up to two levels of decimation
74 			dst_w <<= 1;	/* first level decimation */  in sc_set_hs_coeffs()
76 			dst_w <<= 1;	/* second level decimation */  in sc_set_hs_coeffs()
84 			idx = HS_LT_9_16_SCALE + sixteenths - 8;  in sc_set_hs_coeffs()
99 		coeff_h += SC_NUM_TAPS_MEM_ALIGN - SC_H_NUM_TAPS;  in sc_set_hs_coeffs()
102 	sc->load_coeff_h = true;  in sc_set_hs_coeffs()
107  * set the vertical scaler coefficients according to the ratio of output to
127 		idx = VS_LT_9_16_SCALE + sixteenths - 8;  in sc_set_vs_coeffs()
140 		coeff_v += SC_NUM_TAPS_MEM_ALIGN - SC_V_NUM_TAPS;  in sc_set_vs_coeffs()
143 	sc->load_coeff_v = true;  in sc_set_vs_coeffs()
151 	struct device *dev = &sc->pdev->dev;  in sc_config_scaler()
189 	/* enable 2X or 4X decimation */  in sc_config_scaler()
201 	lltmp = dst_w - 1;  in sc_config_scaler()
202 	lin_acc_inc = div64_u64(((u64)(src_w >> dcm_shift) - 1) << 24, lltmp);  in sc_config_scaler()
206 	dev_dbg(dev, "hs config: src_w = %d, dst_w = %d, decimation = %s, lin_acc_inc = %08x\n",  in sc_config_scaler()
226 			row_acc_init_rav -= 1024;  in sc_config_scaler()
229 				(1 + (row_acc_init_rav >> 1)) -  in sc_config_scaler()
242 		row_acc_inc = ((src_h - 1) << 16) / (dst_h - 1);  in sc_config_scaler()
279 	dev_dbg(&pdev->dev, "sc_create\n");  in sc_create()
281 	sc = devm_kzalloc(&pdev->dev, sizeof(*sc), GFP_KERNEL);  in sc_create()
283 		dev_err(&pdev->dev, "couldn't alloc sc_data\n");  in sc_create()
284 		return ERR_PTR(-ENOMEM);  in sc_create()
287 	sc->pdev = pdev;  in sc_create()
289 	sc->res = platform_get_resource_byname(pdev, IORESOURCE_MEM, res_name);  in sc_create()
290 	if (!sc->res) {  in sc_create()
291 		dev_err(&pdev->dev, "missing '%s' platform resources data\n",  in sc_create()
293 		return ERR_PTR(-ENODEV);  in sc_create()
296 	sc->base = devm_ioremap_resource(&pdev->dev, sc->res);  in sc_create()
297 	if (IS_ERR(sc->base))  in sc_create()
298 		return ERR_CAST(sc->base);  in sc_create()